Type I hypersensitivity (or immediate hypersensitivity) is an<unk> c reaction provoked by re-exposure to a specific type of antigen referred to as an<unk> n. Type I is distinct from type II, type III and type IV hypersensitivities. Exposure may be by ingestion, inhalation, injection, or direct contact.
medical cause of Peanut allergy
symptom of Peanut allergy
symptom of Food allergy
medical cause of Roseola
medical cause of Stevens–Johnson syndrome
medical cause of Conjunctivitis
symptom of Cystic fibrosis
symptom of Legionnaires' disease