[
  {
    "id": "pollen-003",
    "name": "Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy or watery eyes",
      "Nasal congestion",
      "Sinus pressure"
    ],
    "crossReactivity": ["Some fruits and vegetables (oral allergy syndrome)"],
    "prevalence": {
      "general": "10-30% of population"
    },
    "seasonality": {
      "tree": "Early spring",
      "grass": "Late spring to early summer",
      "weed": "Late summer to fall"
    },
    "commonSources": [
      "Trees (oak, birch, cedar)",
      "Grasses (timothy, bermuda)",
      "Weeds (ragweed, mugwort)"
    ],
    "medicalName": "Pollinosis or Hay fever",
    "testingMethods": ["Skin prick test", "Blood test", "Nasal provocation test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "dustmites-004",
    "name": "Dust Mites",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy, red or watery eyes",
      "Nasal congestion",
      "Cough",
      "Postnasal drip",
      "Facial pressure and pain"
    ],
    "crossReactivity": ["Sometimes shellfish (due to tropomyosin protein)"],
    "prevalence": {
      "general": "10% of population",
      "asthmaPatients": "Up to 90%"
    },
    "commonSources": [
      "Bedding",
      "Upholstered furniture",
      "Carpeting",
      "Stuffed toys",
      "Mattresses"
    ],
    "peakSeasons": "Year-round, worse in humid conditions",
    "medicalName": "Dermatophagoides pteronyssinus/farinae allergy",
    "testingMethods": ["Skin prick test", "Blood test for specific IgE"],
    "treatment": "Allergen avoidance, HEPA filters, medications, immunotherapy"
  },
  {
    "id": "pet-006",
    "name": "Pet Dander",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny or stuffy nose",
      "Facial pain (from nasal congestion)",
      "Coughing, chest tightness, shortness of breath",
      "Watery, red or itchy eyes",
      "Skin rash or hives"
    ],
    "crossReactivity": ["Different animal species in some cases"],
    "prevalence": {
      "general": "10-20% of population"
    },
    "commonSources": [
      "Cats",
      "Dogs",
      "Rodents",
      "Birds",
      "Horses"
    ],
    "allergenProteins": {
      "cats": "Fel d 1",
      "dogs": "Can f 1"
    },
    "medicalName": "Animal dander allergy",
    "testingMethods": ["Skin prick test", "Blood test for specific IgE"],
    "treatment": "Avoidance, HEPA filters, medications, immunotherapy"
  },
  {
    "id": "mold-016",
    "name": "Mold Spores",
    "type": "Environmental",
    "category": "Indoor/Outdoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny or stuffy nose",
      "Cough",
      "Wheezing",
      "Itchy eyes, nose, and throat",
      "Skin rash"
    ],
    "crossReactivity": ["Sometimes foods like aged cheese, mushrooms, fermented beverages"],
    "prevalence": {
      "general": "Common, exact prevalence varies by location"
    },
    "commonSources": [
      "Damp areas (bathrooms, basements)",
      "Outdoor vegetation",
      "Decaying leaves",
      "Old books and papers"
    ],
    "peakSeasons": "Year-round, worse in humid conditions or during rainy seasons",
    "medicalName": "Mold allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, dehumidifiers, medications"
  },
  {
    "id": "latex-017",
    "name": "Latex",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": [
      "Hives",
      "Itching",
      "Runny nose",
      "Watery eyes",
      "Wheezing",
      "Anaphylaxis (in severe cases)"
    ],
    "crossReactivity": ["Certain fruits and vegetables (avocado, banana, kiwi, chestnut, papaya, tomato, potato, bell pepper, celery)"],
    "prevalence": {
      "healthcareworkers": "Higher prevalence",
      "general": "Around 1%"
    },
    "commonSources": [
      "Gloves",
      "Balloons",
      "Condoms",
      "Elastic bands",
      "Some medical equipment"
    ],
    "medicalName": "Latex allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance of latex products, epinephrine for severe reactions"
  },
  {
    "id": "cockroaches-018",
    "name": "Cockroach Droppings and Body Parts",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Coughing",
      "Wheezing",
      "Shortness of breath"
    ],
    "crossReactivity": ["Sometimes shellfish (due to tropomyosin protein)"],
    "prevalence": {
      "urbanAreas": "Higher prevalence, especially in low-income communities"
    },
    "commonSources": [
      "Kitchens",
      "Bathrooms",
      "Areas where food is stored or prepared"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Cockroach allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Pest control, thorough cleaning, medications"
  },
  {
    "id": "mouse-019",
    "name": "Mouse Dander and Urine",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Coughing",
      "Wheezing"
    ],
    "crossReactivity": ["Other rodents"],
    "prevalence": {
      "urbanAreas": "Higher prevalence"
    },
    "commonSources": [
      "Homes with rodent infestations",
      "Laboratories using mice"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Mouse allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Pest control, thorough cleaning, medications"
  },
  {
    "id": "rat-020",
    "name": "Rat Dander and Urine",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Coughing",
      "Wheezing"
    ],
    "crossReactivity": ["Other rodents"],
    "prevalence": {
      "urbanAreas": "Higher prevalence"
    },
    "commonSources": [
      "Homes with rodent infestations",
      "Laboratories using rats"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Rat allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Pest control, thorough cleaning, medications"
  },
  {
    "id": "cat-saliva-021",
    "name": "Cat Saliva (Dried)",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny or stuffy nose",
      "Coughing",
      "Wheezing",
      "Itchy eyes",
      "Skin rash"
    ],
    "crossReactivity": ["Other cats"],
    "prevalence": {
      "general": "Significant portion of pet allergies"
    },
    "commonSources": [
      "Cat fur",
      "Cat dander",
      "Surfaces where cats have licked"
    ],
    "medicalName": "Felis domesticus saliva allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, HEPA filters, medications, immunotherapy"
  },
  {
    "id": "dog-saliva-022",
    "name": "Dog Saliva (Dried)",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny or stuffy nose",
      "Coughing",
      "Wheezing",
      "Itchy eyes",
      "Skin rash"
    ],
    "crossReactivity": ["Other dogs"],
    "prevalence": {
      "general": "Significant portion of pet allergies"
    },
    "commonSources": [
      "Dog fur",
      "Dog dander",
      "Surfaces where dogs have licked"
    ],
    "medicalName": "Canis familiaris saliva allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, HEPA filters, medications, immunotherapy"
  },
  {
    "id": "bird-feathers-023",
    "name": "Bird Feathers and Droppings",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Coughing",
      "Wheezing",
      "Shortness of breath"
    ],
    "crossReactivity": ["Other birds"],
    "prevalence": {
      "birdOwners": "Higher prevalence"
    },
    "commonSources": [
      "Pet birds",
      "Pillows and comforters filled with feathers",
      "Areas with wild bird populations"
    ],
    "medicalName": "Avian protein allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, HEPA filters, medications"
  },
  {
    "id": "horse-dander-024",
    "name": "Horse Dander",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Coughing",
      "Wheezing",
      "Hives"
    ],
    "crossReactivity": ["Other equines"],
    "prevalence": {
      "individuals working with horses": "Higher prevalence"
    },
    "commonSources": [
      "Horses",
      "Stables",
      "Riding equipment"
    ],
    "medicalName": "Equine dander allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "rabbit-dander-025",
    "name": "Rabbit Dander",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Skin rash"
    ],
    "crossReactivity": ["Other lagomorphs"],
    "prevalence": {
      "rabbitOwners": "Higher prevalence"
    },
    "commonSources": [
      "Pet rabbits",
      "Rabbit fur products"
    ],
    "medicalName": "Rabbit epithelium allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "grass-pollen-026",
    "name": "Specific Grass Pollens (e.g., Timothy, Bermuda)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Nasal congestion"
    ],
    "crossReactivity": ["Other grasses, some fruits and vegetables"],
    "prevalence": {
      "general": "Common during grass pollen season"
    },
    "seasonality": {
      "timothy": "Late spring to early summer",
      "bermuda": "Summer"
    },
    "commonSources": [
      "Lawns",
      "Fields",
      "Parks"
    ],
    "medicalName": "Specific grass pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "tree-pollen-027",
    "name": "Specific Tree Pollens (e.g., Oak, Birch, Cedar)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Nasal congestion"
    ],
    "crossReactivity": ["Some fruits and nuts (birch pollen allergy)"],
    "prevalence": {
      "general": "Common during tree pollen season"
    },
    "seasonality": {
      "oak": "Spring",
      "birch": "Early spring",
      "cedar": "Winter/Early spring"
    },
    "commonSources": [
      "Various tree species"
    ],
    "medicalName": "Specific tree pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "weed-pollen-028",
    "name": "Specific Weed Pollens (e.g., Ragweed, Mugwort)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Nasal congestion"
    ],
    "crossReactivity": ["Banana, melon, zucchini (ragweed)"],
    "prevalence": {
      "general": "Common during weed pollen season"
    },
    "seasonality": {
      "ragweed": "Late summer to fall",
      "mugwort": "Summer to early fall"
    },
    "commonSources": [
      "Fields",
      "Roadsides",
      "Vacant lots"
    ],
    "medicalName": "Specific weed pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "alternaria-mold-029",
    "name": "Alternaria Mold Spores",
    "type": "Environmental",
    "category": "Indoor/Outdoor",
    "commonSymptoms": [
      "Sneezing",
      "Cough",
      "Wheezing",
      "Asthma exacerbation"
    ],
    "crossReactivity": ["Other molds"],
    "prevalence": {
      "asthmatics": "Common trigger"
    },
    "commonSources": [
      "Outdoor air, especially during warm, dry periods",
      "Indoor damp areas"
    ],
    "peakSeasons": "Summer and fall",
    "medicalName": "Alternaria allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "aspergillus-mold-030",
    "name": "Aspergillus Mold Spores",
    "type": "Environmental",
    "category": "Indoor/Outdoor",
    "commonSymptoms": [
      "Sneezing",
      "Cough",
      "Wheezing",
      "Allergic bronchopulmonary aspergillosis (ABPA) in some individuals"
    ],
    "crossReactivity": ["Other molds"],
    "prevalence": {
      "general": "Common, but severe reactions are less frequent"
    },
    "commonSources": [
      "Soil, decaying vegetation, dust",
      "Indoor damp areas"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Aspergillus allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "cladosporium-mold-031",
    "name": "Cladosporium Mold Spores",
    "type": "Environmental",
    "category": "Indoor/Outdoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Asthma symptoms"
    ],
    "crossReactivity": ["Other molds"],
    "prevalence": {
      "general": "Common outdoor mold"
    },
    "commonSources": [
      "Outdoor air, decaying plant material",
      "Indoor damp areas"
    ],
    "peakSeasons": "Summer and fall",
    "medicalName": "Cladosporium allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "penicillium-mold-032",
    "name": "Penicillium Mold Spores",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Sneezing",
      "Cough",
      "Wheezing",
      "Skin rash"
    ],
    "crossReactivity": ["Other molds"],
    "prevalence": {
      "general": "Common indoor mold"
    },
    "commonSources": [
      "Damp areas, old food, dust"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Penicillium allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "ragweed-pollen-033",
    "name": "Specific Ragweed Species Pollen (e.g., Ambrosia artemisiifolia)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Intense sneezing",
      "Runny and itchy nose",
      "Watery and itchy eyes"
    ],
    "crossReactivity": ["Banana, melon, zucchini, chamomile tea"],
    "prevalence": {
      "general": "Very common in late summer and fall in many regions"
    },
    "seasonality": {
      "general": "Late summer to fall"
    },
    "commonSources": [
      "Ragweed plants"
    ],
    "medicalName": "Specific ragweed allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "mugwort-pollen-034",
    "name": "Mugwort Pollen (Artemisia vulgaris)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes",
      "Asthma symptoms"
    ],
    "crossReactivity": ["Celery, carrot, spices"],
    "prevalence": {
      "general": "Common in late summer and fall"
    },
    "seasonality": {
      "general": "Summer to early fall"
    },
    "commonSources": [
      "Mugwort plants"
    ],
    "medicalName": "Mugwort allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "dust-035",
    "name": "General House Dust",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Nasal congestion",
      "Cough"
    ],
    "crossReactivity": ["Varies depending on dust composition"],
    "prevalence": {
      "general": "Very common"
    },
    "commonSources": [
      "Mixture of dust mites, pet dander, mold spores, pollen, and other particles"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "House dust allergy",
    "testingMethods": ["Skin prick test", "Blood test (targeting specific components)"],
    "treatment": "Avoidance measures, medications"
  },
  {
    "id": "tobacco-smoke-036",
    "name": "Tobacco Smoke (Secondhand)",
    "type": "Environmental",
    "category": "Irritant/Allergen",
    "commonSymptoms": [
      "Coughing",
      "Wheezing",
      "Shortness of breath",
      "Eye irritation",
      "Sore throat"
    ],
    "crossReactivity": ["None (irritant, but can exacerbate allergies)"],
    "prevalence": {
      "exposedIndividuals": "Significant portion of the population"
    },
    "commonSources": [
      "Cigarette, cigar, and pipe smoke"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Secondhand smoke sensitivity/irritation",
    "testingMethods": ["None specific for allergy"],
    "treatment": "Avoidance of smoke"
  },
  {
    "id": "air-pollution-037",
    "name": "Outdoor Air Pollutants (e.g., Smog, Ozone)",
    "type": "Environmental",
    "category": "Irritant",
    "commonSymptoms": [
      "Coughing",
      "Wheezing",
      "Shortness of breath",
      "Throat irritation"
    ],
    "crossReactivity": ["None (irritant, but can worsen allergies)"],
    "prevalence": {
      "urbanAreas": "Higher prevalence"
    },
    "commonSources": [
      "Vehicle emissions, industrial pollution"
    ],
    "peakSeasons": "Varies by location and season",
    "medicalName": "Air pollution sensitivity/irritation",
    "testingMethods": ["None specific for allergy"],
    "treatment": "Avoidance during high pollution days, air purifiers"
  },
  {
    "id": "perfumes-038",
    "name": "Perfumes and Fragrances",
    "type": "Environmental",
    "category": "Chemical Irritant/Allergen",
    "commonSymptoms": [
      "Headaches",
      "Nausea",
      "Dizziness",
      "Respiratory irritation",
      "Skin rash"
    ],
    "crossReactivity": ["Other fragrances, some chemicals"],
    "prevalence": {
      "general": "Significant portion of the population reports sensitivity"
    },
    "commonSources": [
      "Perfumes, colognes, scented products"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Fragrance sensitivity/allergy",
    "testingMethods": ["Patch test for contact dermatitis"],
    "treatment": "Avoidance of scented products"
  },
  {
    "id": "cleaning-products-039",
    "name": "Household Cleaning Products",
    "type": "Environmental",
    "category": "Chemical Irritant",
    "commonSymptoms": [
      "Skin irritation",
      "Respiratory irritation",
      "Headaches"
    ],
    "crossReactivity": ["Other chemicals"],
    "prevalence": {
      "general": "Common sensitivity"
    },
    "commonSources": [
      "Bleach, ammonia, detergents, air fresheners"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Chemical sensitivity/irritation",
    "testingMethods": ["None specific for allergy"],
    "treatment": "Avoidance, use of milder products"
  },
  {
    "id": "cosmetics-040",
    "name": "Cosmetics and Personal Care Products",
    "type": "Environmental",
    "category": "Chemical Allergen",
    "commonSymptoms": [
      "Skin rash (contact dermatitis)",
      "Itching",
      "Swelling"
    ],
    "crossReactivity": ["Specific chemicals in products"],
    "prevalence": {
      "general": "Common"
    },
    "commonSources": [
      "Makeup, lotions, shampoos, soaps"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Contact dermatitis due to cosmetics",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance of specific products"
  },
  {
    "id": "metals-041",
    "name": "Metals (e.g., Nickel)",
    "type": "Environmental",
    "category": "Material Allergen",
    "commonSymptoms": [
      "Skin rash (contact dermatitis)",
      "Itching",
      "Blisters"
    ],
    "crossReactivity": ["Other metals in some cases"],
    "prevalence": {
      "general": "Common, especially nickel"
    },
    "commonSources": [
      "Jewelry, belt buckles, snaps on clothing"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Contact dermatitis due to metal allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance of contact with the metal"
  },
  {
    "id": "fragrances-042",
    "name": "Specific Fragrance Components (e.g., Balsam of Peru)",
    "type": "Environmental",
    "category": "Chemical Allergen",
    "commonSymptoms": [
      "Skin rash (contact dermatitis)",
      "Itching"
    ],
    "crossReactivity": ["Related fragrance components, some foods"],
    "prevalence": {
      "general": "Relatively common"
    },
    "commonSources": [
      "Perfumes, cosmetics, scented products"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Contact dermatitis due to specific fragrance allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance of products containing the specific fragrance"
  },
  {
    "id": "preservatives-043",
    "name": "Preservatives (e.g., Formaldehyde)",
    "type": "Environmental",
    "category": "Chemical Allergen",
    "commonSymptoms": [
      "Skin rash (contact dermatitis)",
      "Respiratory irritation"
    ],
    "crossReactivity": ["Related preservatives"],
    "prevalence": {
      "general": "Relatively common"
    },
    "commonSources": [
      "Cosmetics, lotions, some fabrics"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Contact dermatitis due to preservative allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance of products containing the specific preservative"
  },
  {
    "id": "dyes-044",
    "name": "Dyes (e.g., PPD in hair dye)",
    "type": "Environmental",
    "category": "Chemical Allergen",
    "commonSymptoms": [
      "Skin rash (contact dermatitis)",
      "Itching",
      "Swelling"
    ],
    "crossReactivity": ["Related dyes"],
    "prevalence": {
      "hairdyeUsers": "Higher prevalence"
    },
    "commonSources": [
      "Hair dye, clothing dyes"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Contact dermatitis due to dye allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance of products containing the specific dye"
  },
  {
    "id": "dust-mites-feces-045",
    "name": "Proteins in Dust Mite Feces",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Asthma symptoms"
    ],
    "crossReactivity": ["Shellfish"],
    "prevalence": {
      "general": "High in areas with dust mites"
    },
    "commonSources": [
      "Bedding, carpets, upholstered furniture"
    ],
    "peakSeasons": "Year-round, worse in humid conditions",
    "medicalName": "Dust mite allergen exposure",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "animal-urine-proteins-046",
    "name": "Proteins in Animal Urine (e.g., Cats)",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Asthma symptoms"
    ],
    "crossReactivity": ["Other animals"],
    "prevalence": {
      "petOwners": "Higher prevalence"
    },
    "commonSources": [
      "Litter boxes, areas where pets urinate"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Animal urine allergen exposure",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "insect-droppings-047",
    "name": "Droppings from Other Insects (e.g., Flies)",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": [
      "Respiratory symptoms",
      "Skin irritation"
    ],
    "crossReactivity": ["Other insects"],
    "prevalence": {
      "general": "Less common than cockroach allergy"
    },
    "commonSources": [
      "Areas with insect infestations"
    ],
    "peakSeasons": "Warmer months",
    "medicalName": "Insect allergen exposure",
    "testingMethods": ["Skin prick test", "Blood test (for specific insects)"],
    "treatment": "Pest control, cleaning"
  },
  {
    "id": "feathers-048",
    "name": "Specific Types of Feathers (e.g., Duck, Goose)",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Asthma symptoms"
    ],
    "crossReactivity": ["Other birds"],
    "prevalence": {
      "general": "Variable"
    },
    "commonSources": [
      "Pillows, comforters, down jackets"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Specific feather allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance of feather-containing products"
  },
  {
    "id": "animal-hair-049",
    "name": "Specific Types of Animal Hair (e.g., Angora)",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": [
      "Skin rash",
      "Sneezing",
      "Itching"
    ],
    "crossReactivity": ["Related animals"],
    "prevalence": {
      "general": "Variable"
    },
    "commonSources": [
      "Clothing, blankets, pet hair"
    ],
    "peakSeasons": "Year-round",
    "medicalName": "Specific animal hair allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance"
  },
  {
    "id": "isocyanate-050",
    "name": "Isocyanates (Industrial Chemical)",
    "type": "Environmental",
    "category": "Industrial Allergen",
    "commonSymptoms": [
      "Asthma",
      "Skin rash",
      "Eye irritation"
    ],
    "crossReactivity": ["Other isocyanates"],
    "prevalence": {
      "industrialWorkers": "Higher prevalence"
    },
    "commonSources": [
      "Paints, coatings, polyurethane products"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Isocyanate-induced asthma/dermatitis",
    "testingMethods": ["Specific IgE blood tests, skin tests"],
    "treatment": "Avoidance, protective equipment"
  },
  {
    "id": "epoxy-resins-051",
    "name": "Epoxy Resins",
    "type": "Environmental",
    "category": "Industrial Allergen",
    "commonSymptoms": [
      "Contact dermatitis",
      "Asthma"
    ],
    "crossReactivity": ["Related resins"],
    "prevalence": {
      "industrialWorkers": "Higher prevalence"
    },
    "commonSources": [
      "Adhesives, coatings, electronics"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Epoxy resin allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance, protective equipment"
  },
  {
    "id": "formaldehyde-052",
    "name": "Formaldehyde (Gas)",
    "type": "Environmental",
    "category": "Chemical Irritant/Allergen",
    "commonSymptoms": [
      "Eye, nose, and throat irritation",
      "Skin rash",
      "Asthma"
    ],
    "crossReactivity": ["Related aldehydes"],
    "prevalence": {
      "general": "Sensitivity is common"
    },
    "commonSources": [
      "Building materials, furniture, some fabrics"
    ],
    "peakSeasons": "Year-round, can be worse in new buildings or renovations",
    "medicalName": "Formaldehyde sensitivity/allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance, ventilation"
  },
  {
    "id": "wood-dust-053",
    "name": "Wood Dust",
    "type": "Environmental",
    "category": "Occupational Allergen",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Asthma",
      "Eye irritation",
      "Skin rash"
    ],
    "crossReactivity": ["Different types of wood"],
    "prevalence": {
      "carpenters, woodworkers": "Higher prevalence"
    },
    "commonSources": [
      "Sawing, sanding, and handling wood"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Wood dust allergy",
    "testingMethods": ["Skin prick test", "Specific IgE blood tests"],
    "treatment": "Avoidance, protective equipment"
  },
  {
    "id": "flour-dust-054",
    "name": "Flour Dust",
    "type": "Environmental",
    "category": "Occupational Allergen",
    "commonSymptoms": [
      "Asthma",
      "Rhinitis",
      "Eye irritation",
      "Skin rash"
    ],
    "crossReactivity": ["Different types of flour"],
    "prevalence": {
      "bakers, mill workers": "Higher prevalence"
    },
    "commonSources": [
      "Handling and processing flour"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Baker's asthma",
    "testingMethods": ["Skin prick test", "Specific IgE blood tests"],
    "treatment": "Avoidance, protective equipment"
  },
  {
    "id": "latex-in-food-handling-055",
    "name": "Latex Proteins Airborne from Food Handling",
    "type": "Environmental",
    "category": "Occupational/Material",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Asthma",
      "Hives"
    ],
    "crossReactivity": ["Latex-fruit syndrome"],
    "prevalence": {
      "foodservice workers using latex gloves": "Higher prevalence"
    },
    "commonSources": [
      "Powdered latex gloves"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Airborne latex allergy",
    "testingMethods": ["Skin prick test", "Specific IgE blood tests"],
    "treatment": "Avoidance of latex gloves, use of non-latex alternatives"
  },
  {
    "id": "tobacco-pollen-056",
    "name": "Tobacco Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes"
    ],
    "crossReactivity": ["Other members of the Solanaceae family (tomato, potato)"],
    "prevalence": {
      "tobaccoGrowingRegions": "Higher during pollination"
    },
    "seasonality": {
      "general": "Summer"
    },
    "commonSources": [
      "Tobacco plants"
    ],
    "medicalName": "Tobacco pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "cotton-dust-057",
    "name": "Cotton Dust",
    "type": "Environmental",
    "category": "Occupational Allergen",
    "commonSymptoms": [
      "Chest tightness",
      "Cough",
      "Shortness of breath (Byssinosis or 'Brown Lung')"
    ],
    "crossReactivity": ["Raw cotton"],
    "prevalence": {
      "textile workers": "Higher prevalence"
    },
    "commonSources": [
      "Cotton mills, textile factories"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Byssinosis",
    "testingMethods": ["Pulmonary function tests", "Clinical history"],
    "treatment": "Avoidance of cotton dust exposure"
  },
  {
    "id": "animal-feed-dust-058",
    "name": "Animal Feed Dust",
    "type": "Environmental",
    "category": "Occupational Allergen",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Asthma"
    ],
    "crossReactivity": ["Components of animal feed (grains, etc.)"],
    "prevalence": {
      "farmers, livestock workers": "Higher prevalence"
    },
    "commonSources": [
      "Handling animal feed"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Farmer's lung (hypersensitivity pneumonitis)",
    "testingMethods": ["Pulmonary function tests", "Blood tests"],
    "treatment": "Avoidance of exposure"
  },
  {
    "id": "grain-dust-059",
    "name": "Grain Dust",
    "type": "Environmental",
    "category": "Occupational Allergen",
    "commonSymptoms": [
      "Cough",
      "Wheezing",
      "Shortness of breath"
    ],
    "crossReactivity": ["Specific grains"],
    "prevalence": {
      "farmers, grain handlers": "Higher prevalence"
    },
    "commonSources": [
      "Handling and processing grains"
    ],
    "peakSeasons": "Harvest season, occupational exposure",
    "medicalName": "Grain dust allergy/hypersensitivity",
    "testingMethods": ["Pulmonary function tests", "Skin prick tests"],
    "treatment": "Avoidance of exposure"
  },
  {
    "id": "sawdust-060",
    "name": "Specific Types of Sawdust (e.g., Cedar)",
    "type": "Environmental",
    "category": "Occupational Allergen",
    "commonSymptoms": [
      "Asthma",
      "Rhinitis",
      "Eye irritation"
    ],
    "crossReactivity": ["Related wood species"],
    "prevalence": {
      "woodworkers": "Higher prevalence"
    },
    "commonSources": [
      "Working with specific types of wood"
    ],
    "peakSeasons": "Occupational exposure",
    "medicalName": "Specific wood dust allergy",
    "testingMethods": ["Skin prick test", "Specific IgE blood tests"],
    "treatment": "Avoidance, protective equipment"
  },
  {
    "id": "grass-cutting-allergens-061",
    "name": "Airborne Grass Allergens Released During Cutting",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Itchy eyes"
    ],
    "crossReactivity": ["Other grasses"],
    "prevalence": {
      "grassPollenAllergicIndividuals": "Higher during and after mowing"
    },
    "seasonality": {
      "general": "Grass pollen season"
    },
    "commonSources": [
      "Mowing lawns"
    ],
    "medicalName": "Exacerbation of grass pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance during mowing, medications"
  },
  {
    "id": "leaf-mold-062",
    "name": "Mold Spores from Decaying Leaves",
    "type": "Environmental",
    "category": "Outdoor",
    "commonSymptoms": [
      "Sneezing",
      "Cough",
      "Wheezing"
    ],
    "crossReactivity": ["Other molds"],
    "prevalence": {
      "general": "Higher in fall"
    },
    "seasonality": {
      "general": "Fall"
    },
    "commonSources": [
      "Piles of decaying leaves"
    ],
    "medicalName": "Leaf mold allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "compost-mold-063",
    "name": "Mold Spores in Compost",
    "type": "Environmental",
    "category": "Outdoor",
    "commonSymptoms": [
      "Respiratory symptoms",
      "Skin irritation"
    ],
    "crossReactivity": ["Other molds"],
    "prevalence": {
      "gardeners": "Higher prevalence"
    },
    "seasonality": {
      "general": "Warmer months"
    },
    "commonSources": [
      "Compost piles"
    ],
    "medicalName": "Compost mold allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, protective measures"
  },
  {
    "id": "mushroom-spores-064",
    "name": "Mushroom Spores (Outdoor)",
    "type": "Environmental",
    "category": "Outdoor",
    "commonSymptoms": [
      "Sneezing",
      "Runny nose",
      "Asthma"
    ],
    "crossReactivity": ["Other fungi"],
    "prevalence": {
      "general": "Higher in damp environments"
    },
    "seasonality": {
      "general": "Late summer and fall"
    },
    "commonSources": [
      "Damp forests, lawns"
    ],
    "medicalName": "Mushroom spore allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "lichen-065",
    "name": "Lichen Spores",
    "type": "Environmental",
    "category": "Outdoor",
    "commonSymptoms": [
      "Respiratory symptoms"
    ],
    "crossReactivity": ["Other fungi"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Varies by species"},
    "commonSources": ["Rocks, trees"],
    "medicalName": "Lichen allergy",
    "testingMethods": ["Skin prick test"],
    "treatment": "Avoidance"
  },
  {
    "id": "fern-spores-066",
    "name": "Fern Spores",
    "type": "Environmental",
    "category": "Outdoor",
    "commonSymptoms": ["Respiratory symptoms"],
    "crossReactivity": ["Other ferns"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Varies by species"},
    "commonSources": ["Fern plants"],
    "medicalName": "Fern spore allergy",
    "testingMethods": ["Skin prick test"],
    "treatment": "Avoidance"
  },
  {
    "id": "moss-spores-067",
    "name": "Moss Spores",
    "type": "Environmental",
    "category": "Outdoor",
    "commonSymptoms": ["Respiratory symptoms"],
    "crossReactivity": ["Other mosses"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Varies by species"},
    "commonSources": ["Damp, shaded areas"],
    "medicalName": "Moss spore allergy",
    "testingMethods": ["Skin prick test"],
    "treatment": "Avoidance"
  },
  {
    "id": "algae-spores-068",
    "name": "Algae Spores (Airborne)",
    "type": "Environmental",
    "category": "Outdoor",
    "commonSymptoms": ["Respiratory symptoms"],
    "crossReactivity": ["Other algae"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Varies by species, often humid conditions"},
    "commonSources": ["Ponds, damp surfaces"],
    "medicalName": "Algae spore allergy",
    "testingMethods": ["Skin prick test"],
    "treatment": "Avoidance"
  },
  {
    "id": "spider-mites-069",
    "name": "Spider Mites (Indoor Plants)",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": ["Skin rash", "Respiratory symptoms"],
    "crossReactivity": ["Dust mites (possibly)"],
    "prevalence": {"houseplantOwners": "Potential exposure"},
    "seasonality": {"general": "Year-round indoors"},
    "commonSources": ["Infested houseplants"],
    "medicalName": "Spider mite allergy",
    "testingMethods": ["Skin prick test (extracts may not be standard)"],
    "treatment": "Avoidance, pest control for plants"
  },
  {
    "id": "insect-parts-070",
    "name": "Body Parts of Dead Insects (e.g., Carpet Beetles)",
    "type": "Environmental",
    "category": "Indoor",
    "commonSymptoms": ["Skin irritation", "Respiratory symptoms"],
    "crossReactivity": ["Other insects"],
    "prevalence": {"general": "Less common"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Dust, carpets, closets"],
    "medicalName": "Insect debris allergy",
    "testingMethods": ["Skin prick test (extracts may not be standard)"],
    "treatment": "Thorough cleaning"
  },
  {
    "id": "kapok-071",
    "name": "Kapok Fiber",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Respiratory symptoms", "Skin irritation"],
    "crossReactivity": ["Latex (sometimes)"],
    "prevalence": {"general": "Rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Old pillows, mattresses"],
    "medicalName": "Kapok allergy",
    "testingMethods": ["Skin prick test"],
    "treatment": "Avoidance"
  },
  {
    "id": "down-feathers-072",
    "name": "Down Feathers",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": ["Respiratory symptoms"],
    "crossReactivity": ["Other bird feathers"],
    "prevalence": {"general": "Variable"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Pillows, comforters, down jackets"],
    "medicalName": "Down feather allergy",
    "testingMethods": ["Skin prick test"],
    "treatment": "Avoidance"
  },
  {
    "id": "jute-073",
    "name": "Jute Fiber",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Skin irritation", "Respiratory symptoms"],
    "crossReactivity": ["Other plant fibers"],
    "prevalence": {"general": "Rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Rugs, burlap"],
    "medicalName": "Jute allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "hemp-074",
    "name": "Hemp Fiber",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Skin irritation", "Respiratory symptoms"],
    "crossReactivity": ["Other plant fibers"],
    "prevalence": {"general": "Rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Clothing, textiles"],
    "medicalName": "Hemp allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "flax-075",
    "name": "Flax Fiber (Linen)",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Skin irritation", "Respiratory symptoms"],
    "crossReactivity": ["Other plant fibers"],
    "prevalence": {"general": "Rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Linen clothing, bedding"],
    "medicalName": "Flax allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "rayon-076",
    "name": "Rayon (Viscose) Fiber",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Skin irritation"],
    "crossReactivity": ["Other synthetic fibers (rarely)"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Clothing, textiles"],
    "medicalName": "Rayon allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "nylon-077",
    "name": "Nylon Fiber",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Skin irritation"],
    "crossReactivity": ["Other synthetic fibers (rarely)"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Clothing, carpets"],
    "medicalName": "Nylon allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "polyester-078",
    "name": "Polyester Fiber",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Skin irritation"],
    "crossReactivity": ["Other synthetic fibers (rarely)"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Clothing, bedding"],
    "medicalName": "Polyester allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "acrylic-079",
    "name": "Acrylic Fiber",
    "type": "Environmental",
    "category": "Material",
    "commonSymptoms": ["Skin irritation"],
    "crossReactivity": ["Other synthetic fibers (rarely)"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Clothing, blankets"],
    "medicalName": "Acrylic allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "wool-080",
    "name": "Wool (Lanolin Allergy)",
    "type": "Environmental",
    "category": "Animal Product",
    "commonSymptoms": ["Skin rash", "Itching"],
    "crossReactivity": ["Lanolin-containing products"],
    "prevalence": {"general": "Relatively uncommon"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Wool clothing, blankets"],
    "medicalName": "Lanolin allergy (often associated with wool)",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance of wool and lanolin"
  },
  {
    "id": "silk-081",
    "name": "Silk",
    "type": "Environmental",
    "category": "Animal Product",
    "commonSymptoms": ["Skin rash", "Itching"],
    "crossReactivity": ["Other insect products (rarely)"],
    "prevalence": {"general": "Very rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Silk clothing, bedding"],
    "medicalName": "Silk allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "dander-from-less-common-pets-082",
    "name": "Dander from Less Common Pets (e.g., Ferrets, Guinea Pigs)",
    "type": "Environmental",
    "category": "Animal",
    "commonSymptoms": ["Sneezing", "Runny nose", "Skin rash"],
    "crossReactivity": ["Other rodents, related species"],
    "prevalence": {"owners of these pets": "Higher prevalence"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Pet dander, bedding"],
    "medicalName": "Specific pet dander allergy",
    "testingMethods": ["Skin prick test", "Blood test (if specific allergens available)"],
    "treatment": "Avoidance, medications"
  },
  {
    "id": "beeswax-083",
    "name": "Beeswax",
    "type": "Environmental",
    "category": "Animal Product",
    "commonSymptoms": ["Skin rash"],
    "crossReactivity": ["Propolis, bee venom (sometimes)"],
    "prevalence": {"general": "Rare"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Candles, cosmetics"],
    "medicalName": "Beeswax allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "propolis-084",
    "name": "Propolis (Bee Glue)",
    "type": "Environmental",
    "category": "Animal Product",
    "commonSymptoms": ["Skin rash"],
    "crossReactivity": ["Beeswax, bee venom (sometimes)"],
    "prevalence": {"beekeepers": "Higher prevalence"},
    "seasonality": {"general": "Year-round"},
    "commonSources": ["Some natural health products, cosmetics"],
    "medicalName": "Propolis allergy",
    "testingMethods": ["Patch test"],
    "treatment": "Avoidance"
  },
  {
    "id": "pine-pollen-085",
    "name": "Pine Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Eye irritation (less potent allergen)"],
    "crossReactivity": ["Other conifers"],
    "prevalence": {"general": "Common during pollination, but less allergenic than other pollens"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Pine trees"],
    "medicalName": "Pine pollen sensitivity",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Usually mild symptoms, may not require extensive treatment"
  },
  {
    "id": "cedar-pollen-086",
    "name": "Cedar Tree Pollen (Mountain Cedar)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Intense sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Other junipers and conifers"],
    "prevalence": {"Southwestern US": "Significant allergen in winter"},
    "seasonality": {"general": "Winter"},
    "commonSources": ["Cedar trees (specifically Juniperus ashei)"],
    "medicalName": "Mountain cedar allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "oak-pollen-087",
    "name": "Oak Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Nasal congestion"],
    "crossReactivity": ["Birch pollen (sometimes)"],
    "prevalence": {"general": "Common in spring"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Oak trees"],
    "medicalName": "Oak pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "birch-pollen-088",
    "name": "Birch Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes", "Oral allergy syndrome"],
    "crossReactivity": ["Apple, cherry, almond, carrot, celery"],
    "prevalence": {"Northern latitudes": "Common in early spring"},
    "seasonality": {"general": "Early spring"},
    "commonSources": ["Birch trees"],
    "medicalName": "Birch pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "maple-pollen-089",
    "name": "Maple Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Nasal congestion"],
    "crossReactivity": ["Other maple species (rarely)"],
    "prevalence": {"general": "Moderate allergen in spring"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Maple trees"],
    "medicalName": "Maple pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "elm-pollen-090",
    "name": "Elm Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Other elm species"],
    "prevalence": {"general": "Early spring allergen"},
    "seasonality": {"general": "Late winter to early spring"},
    "commonSources": ["Elm trees"],
    "medicalName": "Elm pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "ash-pollen-091",
    "name": "Ash Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Nasal congestion"],
    "crossReactivity": ["Olive pollen (sometimes)"],
    "prevalence": {"general": "Spring allergen"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Ash trees"],
    "medicalName": "Ash pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "alder-pollen-092",
    "name": "Alder Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Birch and hazelnut pollen"],
    "prevalence": {"Northern latitudes": "Early spring allergen"},
    "seasonality": {"general": "Late winter to early spring"},
    "commonSources": ["Alder trees"],
    "medicalName": "Alder pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "willow-pollen-093",
    "name": "Willow Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Poplar pollen (sometimes)"],
    "prevalence": {"general": "Early spring allergen"},
    "seasonality": {"general": "Early spring"},
    "commonSources": ["Willow trees"],
    "medicalName": "Willow pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "poplar-pollen-094",
    "name": "Poplar Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Nasal congestion"],
    "crossReactivity": ["Willow pollen (sometimes)"],
    "prevalence": {"general": "Spring allergen"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Poplar trees"],
    "medicalName": "Poplar pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "sycamore-pollen-095",
    "name": "Sycamore Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Plane tree pollen"],
    "prevalence": {"general": "Spring allergen"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Sycamore trees"],
    "medicalName": "Sycamore pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "plane-tree-pollen-096",
    "name": "Plane Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Sycamore pollen"],
    "prevalence": {"general": "Spring allergen"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Plane trees"],
    "medicalName": "Plane tree pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "olive-pollen-097",
    "name": "Olive Tree Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes", "Asthma"],
    "crossReactivity": ["Ash pollen (sometimes)"],
    "prevalence": {"Mediterranean regions, parts of the US": "Spring allergen"},
    "seasonality": {"general": "Spring"},
    "commonSources": ["Olive trees"],
    "medicalName": "Olive pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "ragweed-species-pollen-098",
    "name": "Other Ragweed Species Pollen (e.g., Short Ragweed)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Other ragweed species"],
    "prevalence": {"general": "Late summer/fall allergen"},
    "seasonality": {"general": "Late summer to fall"},
    "commonSources": ["Various ragweed species"],
    "medicalName": "Ragweed species allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids, immunotherapy"
  },
  {
    "id": "nettle-pollen-099",
    "name": "Nettle Pollen",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Other weeds (rarely)"],
    "prevalence": {"general": "Summer allergen"},
    "seasonality": {"general": "Summer"},
    "commonSources": ["Nettle plants"],
    "medicalName": "Nettle pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  },
  {
    "id": "plantain-pollen-100",
    "name": "Plantain Pollen (Ribwort Plantain)",
    "type": "Environmental",
    "category": "Airborne",
    "commonSymptoms": ["Sneezing", "Runny nose", "Itchy eyes"],
    "crossReactivity": ["Other weeds (rarely)"],
    "prevalence": {"general": "Summer allergen"},
    "seasonality": {"general": "Summer"},
    "commonSources": ["Plantain plants"],
    "medicalName": "Plantain pollen allergy",
    "testingMethods": ["Skin prick test", "Blood test"],
    "treatment": "Antihistamines, nasal steroids"
  }
]