. . "any of a group of very small rod-shaped bacteria that live in biting arthropods (as ticks and mites) and cause disease in vertebrate hosts; they cause typhus and other febrile diseases in human beings"@en-us . . . "101311963"@en-us . "0"^^ . "01371483-n"^^ . . . . . . . . . "rickettsia"@en-us . "rickettsia"^^ . "0"^^ . "101371483"^^ .