Anaplasma phagocytophilum
| Anaplasma phagocytophilum | |
|---|---|
| Human HL60 cells containing Anaplasma phagocytophilum (indicated by arrows) which are basophilic intracytoplasmic inclusions when stained with Wright-Giemsa stain | |
| Scientific classification | |
| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Alphaproteobacteria |
| Order: | Rickettsiales |
| Family: | Ehrlichiaceae |
| Genus: | Anaplasma |
| Species: | A. phagocytophilum |
| Binomial name | |
| Anaplasma phagocytophilum (Foggie 1949) Dumler et al. 2001 | |
| Synonyms | |
|
Rickettsia phagocytophila ovis | |
Anaplasma phagocytophilum (formerly Ehrlichia phagocytophilum) is a Gram-negative bacterium that is unusual in its tropism to neutrophils. It causes anaplasmosis in sheep and cattle, also known as tick-borne fever and pasture fever, and also causes the zoonotic disease human granulocytic anaplasmosis.
A. phagocytophilum is a Gram-negative, obligate bacterium of neutrophils. It causes human granulocytic anaplasmosis, which is a tick-borne rickettsial disease. Because this bacterium invades neutrophils, it has a unique adaptation and pathogenetic mechanism.
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