Effects of stress upon acquired immunity to the dwarf tapeworm, Hymenolepis nana.
D000818:Animals; D001522:Behavior, Animal; D003080:Cold Temperature; D006925:Hymenolepiasis / Q000276:immunology*; D007109:Immunity / Q000502:physiology; D008297:Male; D051379:Mice; D013312:Stress, Physiological