NCIt definition : A species of aerobic, Gram negative, rod and cocci shaped bacteria assigned to the
phylum Proteobacteria. This species is motile, obligately intracellular and transmitted
to humans by the bite of the cat flea, Ctenocephalides felis. R. felis is a pathogen
that causes fever and may present other symptoms including headache, rash, vomiting,
and stupor.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Rickettsia felis.;