title: Protection of guinea pigs from experimental Rocky Mountain spotted fever with a cloned antigen of Rickettsia rickettsii.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000008:administration & dosage* / Q000276:immunology; D001428:Bacterial Vaccines; D006168:Guinea Pigs; D008297:Male; D011994:Recombinant Proteins / Q000008:administration & dosage / Q000276:immunology; D012284:Rickettsia rickettsii / Q000276:immunology*; D012373:Rocky Mountain Spotted Fever / Q000517:prevention & control*; D014614:Vaccines, Synthetic
chemical_list: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines; D011994:Recombinant Proteins; D014614:Vaccines, Synthetic