A factor in lungs of anaphylactically shocked guinea pigs which can induce eosinophilia in normal animals.
D000818:Animals; D004802:Eosinophilia; D006168:Guinea Pigs; D006967:Hypersensitivity; D008168:Lung; D011657:Pulmonary Eosinophilia / Q000209:etiology*
ALLERGY/experimental; LOEFFLER'S SYNDROME/etiology and pathogenesis