title: Protective activity in sera from mice immunized against Plasmodium berghei.
mesh_terms: D000818:Animals; D001769:Blood / Q000469:parasitology; D007116:Immunization, Passive; D008288:Malaria / Q000276:immunology* / Q000469:parasitology; D051379:Mice; D010962:Plasmodium berghei / Q000276:immunology*