From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Alphaproteobacteria
Order: Rickettsiales
Family: Anaplasmataceae
Genus: Anaplasma
Theiler 1910[1]
Type species
Anaplasma marginale[1]

A. bovis[1]
A. caudatum[1]
A. centrale[1]
A. marginale[1]
A. ovis[1]
A. phagocytophilum[1]
A. platys[1]

Anaplasma is a genus of bacteria of the alphaproteobacterial Order Rickettsiales, Family Anaplasmataceae.

Anaplasma species reside in host blood cells and lead to the disease anaplasmosis. The disease most commonly occur in areas where competent tick vectors are indigenous, including tropical and semitropical areas of the world for intraerythrocytic Anaplasma spp.[2]

Anaplasma species are biologically transmitted by ixodid tick vectors, and the prototypical species, A. marginale, can be mechanically transmitted by biting flies and iatrogenically with blood-contaminated instruments.[2]

One of the major consequences of infection by bovine red blood cells by Anaplasma marginale is the development of non-haemolytic anaemia, thus the absence of hemoglobinurea, which allows clinical differentiation from another major tick-borne disease, bovine babesiosis, caused by Babesia bigemina.[2]

Species of veterinary interest include:


The genomes from at least three different Anaplasma species have been sequenced.[3] These genomes are about 1.1 to 1.2 MB in size and encode 925 to 1,335 proteins.

See also[edit]


  1. ^ a b c d e f g h i Parte, A.C. "Anaplasma". 
  2. ^ a b c d Anaplasmas reviewed and published by WikiVet, accessed 10 October 2011.
  3. ^ Anaplasma genomes in the JGI genome browser

External links[edit]