title: Plasmodium berghei infections in gnotobiotic mice and rats: parasitologic, immunologic and histopathologic observations.
mesh_terms: D000818:Animals; D005856:Germ-Free Life; D008288:Malaria / Q000276:immunology* / Q000473:pathology*; D051379:Mice; D010961:Plasmodium / Q000472:pathogenicity*; D051381:Rats