Immunity and concomitant immunity in infectious diseases. Introduction.
D000486:Allergy and Immunology / Q000266:history*; D003141:Communicable Diseases / Q000276:immunology*; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008954:Models, Biological; D012552:Schistosomiasis / Q000276:immunology