title: Serological relationship between Cowdria ruminantium and certain ehrlichia.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000032:analysis*; D004536:Ehrlichia / Q000276:immunology*; D006041:Goats; D012287:Rickettsiaceae / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial