From the NIH: Appearance of interferon in viral infections may cause asthma while controlling virus.
D001249:Asthma / Q000209:etiology*; D006636:Histamine Release; D006801:Humans; D007372:Interferons / Q000502:physiology*; D014777:Virus Diseases / Q000150:complications / Q000276:immunology*
D007372:Interferons