Reorganization of genera in the families Rickettsiaceae and Anaplasmataceae
in the order Rickettsiales: unification of some species of Ehrlichia with Anaplasma, Cowdria with Ehrlichia and Ehrlichia with Neorickettsia, descriptions of six new species combinations and designation of Ehrlichia equi and 'HGE pathogen' as subjective synonyms of Ehrlichia phagocytophila.
Anaplasma phagocytophilum is an Anaplasmataceae
bacterium that infects humans to cause granulocytic anaplasmosis.
The highest average prevalence of Anaplasmataceae
These genera are found in the Anaplasmataceae
family and include the following recognized species relevant to human infection: E.
chaffeensis belong to the family Anaplasmataceae
and is a member of the subdivision of the Proteobacteria.
To the Editor: Candidatus Neoehrlichia mikurensis is a member of the order Rickettsiales, family Anaplasmataceae
Human monocytic ehrlichiosis (HME) is caused by an obligate intracellular gram-negative bacteria of the family Anaplasmataceae
During the last decade, DNA of a new species of intracellular bacteria belonging to the family Anaplasmataceae
was sequenced from isolates from ticks and rodents originating in Europe and Asia (3-5).
Analysis revealed that 30 of the 33 amplified fragments showed 100% identity to the 16S rDNA gene of a symbiont in the family Anaplasmataceae
, Candidatus Midichloria mitochondrii (GenBank accession no.
It was then classified as a new member of family Anaplasmataceae
on the basis of ultrastructure and phylogenetic analysis (2).
The rickettsial family Anaplasmataceae
contains several tick-transmitted bacteria of considerable medical and veterinary importance, including known human pathogens such as Anaplasma phagocytophilum and Ehrlichia chaffeensis.
To the Editor: Ehrlichia chaffeensis is an obligate intracellular bacterium in the family Anaplasmataceae