The genus Anaplasma includes a diverse group of tick-borne pathogens found exclusively within membrane-bound vacuoles in host cells. While A. marginale, A. centrale and A. ovis, vectored by Dermacentor and Rhipicephalus ticks, are host-specific for ruminants, A. phagocytophilum, vectored by Ixodes spp., infects a wide range of hosts. In ticks Anaplasma undergoes a developmental cycle that is co...

background: ovine anaplasmosis and theileriosis are important tick-borne diseases of sheep and goats which are distributed in the tropical and subtropical areas of the world. objectives: this study was performed to assess hematological status in sheep naturally infected with anaplasma and theileria spp. to clarify the pathogenic aspects of various species involved in ovine anaplasmosis and thei...

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BACKGROUND Thrombocytopenia is common in dogs on St Kitts but there is no data on the possible etiological role played by infections with Anaplasma, Babesia and Ehrlichia, other than E. canis, which are known to occur in the Caribbean. METHODOLOGY Blood from 13 thrombocytopenic but apparently healthy dogs seronegative (Snap 3Dx) for E. canis were tested by PCR for Ehrlichia, Anaplasma and Bab...

The objective of this study was to investigate the prevalence of tick-borne pathogens in the Korean water deer (Hydropotes inermis argyropus). Pathogens were identified using PCR which included Anaplasma, Ehrlichia, Rickettsia, and Theileria. Rickettsia was not detected, whereas Anaplasma, Ehrlichia, and Theileria infections were detected in 4, 2, and 8 animals, respectively. The most prevalent...

Anaplasma marginale is the causative agent of bovine anaplasmosis, a disease of worldwide economic importance. Major surface proteins (MSPs) are involved in host-pathogen and tick-pathogen interactions and they have been used as markers for the genetic characterization of A. marginale strains and phylogenetic studies. The major surface protein 5 (MSP5) is highly conserved in the genus Anaplasma...

background: anaplasmosis belongs to the complex of several tick-borne diseases and can cause diseases in the livestock with high economical losses. cattle that recover from acute infection become carriers and the parasite can persist most probably for the lifetime in the blood. the aim of the present study was the determination of the persistently infected cattle in a region of iran with the pr...

Canine DNA samples from South Africa were found to contain 16S rRNA gene nucleotide and citrate synthase gene nucleotide and deduced amino acid sequences that were most similar to Anaplasma phagocytophilum: 98%, 66%, and 69% similarity, respectively. This suggests that a new Anaplasma species closely related to A. phagocytophilum occurs in Africa.

The Tm value of DNA from Anaplasma centrale and Anaplasma marginale was found to be 87.1 degrees C and 89.3 degrees C, respectively. The G + C content, calculated from the Tm, was 45.1% for A. centrale and 48.5% for A. marginale. Identical hybridization patterns were obtained when the DNA from one species was hybridized to restriction endonuclease-digested DNA from the other species.