A total of 2,121 small mammals in California were assessed for Anaplasma phagocytophilum from 2006 through 2008. Odds ratios were >1 for 4 sciurids species and dusky-footed woodrats. High seroprevalence was observed in northern sites. Ten tick species were identified. Heavily infested rodent species included meadow voles, woodrats, deer mice, and redwood chipmunks.

We have previously described a comparative genome analysis of nine strains of Anaplasma phagocytophilum that showed similarity between strains infecting humans and U.S. dogs and a more distant relationship with horse and ruminant strains. This suggested that it may be possible to distinguish human-infective strains using simple DNA sequence-based diagnostic tests. This would be of epidemiologic...

background and objectives: anaplasma phagocytophilum is a zoonotic, tick borne rickettsial pathogen. a. phagocytophilum has been detected in north america, europe, africa and asia by molecular methods. in iran we have little information about the distribution of this agent in human and animals. materials and methods: from march 2007 to july 2007, one hundred and fifty blood samples and correspo...

of anthrax (7,8). Alternatively, lowgrade sporadic infection may have been ongoing since the 1940s and infrequent stock mortality may not have been investigated for anthrax because of a low local index of suspicion, resulting in environmental contamination The extreme weather conditions in the area may have unearthed spores from undiagnosed carcasses, providing simultaneous exposures on multipl...

A total of 705 rodents from 6 provinces and autonomous regions of mainland People's Republic of China were tested by PCRs for tick-borne agents (Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, spotted fever group rickettsiae, and Francisella tularensis). Infection rates were 5.5%, 6.7%, 9.1% and 5.0%, respectively. Eighteen (2.6%) rodents of 10 species were positive for 2 or 3 agent...

From January 2004 to July 2007, 2455 sera were collected from domestic and wild animals living in central Italy and tested by indirect immunofluorescence assay to detect antibodies against Anaplasma phagocytophilum. Considering sera with 1:40 antibody titers as positive, 336 (13.68%) animals scored positive. The percentages of seropositivity were: 46.26% (31/67) in fallow deer, 46.15% (24/52) i...

Sequences from the Anaplasma phagocytophilum 16S rRNA gene were detected in 5 ticks representing 3 species (Hyalomma marginatum, Rhipicephalus turanicus, and Boophilus kohlsi) collected from roe deer (Capreolus capreolus) in Mount Carmel, Israel. The sequences were all identical to those of Ap-variant 1 strain.

Background: Anaplasma phagocytophilum is the etiological agent of canine granulocytic anaplasmosis in dogs and causes human (HGA). Tick-borne has been recognised as an emerging zoonotic health concern worldwide. The aim present study was to determine prevalence A. ticks collected from UK map its distribution. Routine surveillance tick-borne disease essential part a “One Health” approach infecti...

BACKGROUND Anaplasmosis is a vectorborne disease caused by the gram-negative bacterium Anaplasma phagocytophilum. This species displays positive tropism to granulocytes and can cause illness in several mammalian species, including cats, dogs, and humans. It is considered as an emerging disease in Europe. The clinical signs are nonspecific and include fever, lethargy, and inappetence. The most t...

BACKGROUND Anaplasma phagocytophilum (formerly Ehrlichia phagocytophila) is an obligate intracellular bacterium causing the disease tick-borne fever (TBF) in domestic ruminants. An effective vaccine against the infection has been demanded for livestock by sheep farmers and veterinary practitioners for years. FINDINGS In the present study, we immunized lambs with an inactivated suspension of 1...