Parasitological immunology.
D000818:Animals; D049673:History, 20th Century; D006801:Humans; D006968:Hypersensitivity, Delayed; D007111:Immunity, Cellular; D010272:Parasitic Diseases / Q000276:immunology*; D010274:Parasitology / Q000266:history; D011044:Poland; D012106:Research / Q000266:history