Neorickettsia

{{Short description|Genus of bacteria}}

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{{Infobox medical condition (new)

| name = Neorickettsia

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| field = Infectious disease

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{{Automatic_taxobox

| taxon = Neorickettsia

| authority = Philip et al. 1953 (Approved Lists 1980)

| subdivision_ranks = Species

| subdivision = See text.

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Neorickettsia is a genus of bacteria. Species or strains in this genus are coccoid or pleomorphic cells that reside in cytoplasmic vacuoles within monocytes and macrophages of dogs, horses, bats, and humans.

{{cite book | last = Garrity | first = George | title = Bergey's Manual of Systematic Bacteriology | publisher = Springer | year = 2005 | isbn = 0-387-24145-0 | url-access = registration | url = https://archive.org/details/bergeysmanualofs00boon }}

Neorickettsia sennetsu causes Sennetsu ehrlichiosis.{{cite web |url=http://www.ebi.ac.uk/2can/genomes/bacteria/Neorickettsia_sennetsu.html |title=Neorickettsia_sennetsu | 2can Support Portal | EBI |access-date=}} Unlike other forms of ehrlichiosis, Neorickettsia sennetsu is transmitted by trematodes from fish.{{cite web |url=http://wwwnc.cdc.gov/travel/yellowbook/2010/chapter-5/rickettsial-and-related-infections.aspx |title=Chapter 5 - Rickettsial (Spotted and Typhus Fevers) and Related Infections (Anaplasmosis and Ehrlichiosis) - 2010 Yellow Book | CDC Travelers' Health |format= |access-date=}} Neorickettsia risticii causes Potomac horse fever. Neorickettsia helminthoeca is found in association with the trematode Nanophyetus salmincola, and causes salmon poisoning disease in dogs and other canids. Neorickettsia elokominica causes a similar disease, Elokomin fluke fever, in canids and other species.