Neorickettsia risticii

Ehrlichiaceae
Scientific classification
Kingdom:	Bacteria
Phylum:	Proteobacteria
Class:	Alpha Proteobacteria
Order:	Rickettsiales
Family:	Anaplasmataceae
Genus:	Neorickettsia
Species:	N. risticii
Binomial name
Neorickettsia risticii (Dumler et al., 2001)

Neorickettsia risticii (formerly Ehrlichia risticii) is a Gram-negative bacterium that causes Potomac horse fever.