title: A Question of Nature: Some Antigens are Bound to be Allergens.
authors.affiliation: Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz , Salvador , Brazil ; Social Changes, Asthma and Allergy in Latin America - SCAALA - Program , Salvador , Brazil.
authors.forename: Lain
authors.initials: L
authors.lastname: Pontes-de-Carvalho
authors.affiliation: Instituto Oswaldo Cruz, Fundação Oswaldo Cruz , Rio de Janeiro , Brazil ; Faculty of Medicine of Petropolis, FMP-FASE , Petrópolis , Brazil.
authors.forename: José
authors.initials: J
authors.lastname: Mengel
keywords: Th2; allergen; allergenicity; allergy; cross-reactivity; evolution; helminth