title: The role of delayed hypersensitivity in the phenomenon of acquired resistance to L. carinii infection in albino rats.
mesh_terms: D000818:Animals; D002464:Cell Migration Inhibition; D006168:Guinea Pigs / Q000276:immunology; D006968:Hypersensitivity, Delayed / Q000276:immunology*; D007110:Immunity, Active; D008214:Lymphocytes / Q000276:immunology; D008264:Macrophages / Q000276:immunology; D009349:Nematode Infections / Q000276:immunology*; D051381:Rats; D013151:Spiruroidea