Single Genotype of Anaplasma phagocytophilum Identified from Ticks, Camargue, France
نویسندگان
چکیده
Hidemasa Izumiya, Jun Terajima, Shouji Yamamoto, Makoto Ohnishi, Haruo Watanabe, Akemi Kai, Takayuki Kurazono, Masumi Taguchi, Tetsuo Asai, Masato Akiba, Yuko Matsumoto, and Yutaka Tamura Author affiliations: National Institute of Infectious Diseases, Tokyo, Japan (H. Izumiya, J. Terajima, S. Yamamoto, M. Ohnishi, H. Watanabe); Tokyo Metropolitan Institute of Public Health, Tokyo (A. Kai); Saitama Institute of Public Health, Saitama, Japan (T. Kurazono); Osaka Prefectural Institute of Public Health, Osaka, Japan (M. Taguchi); National Veterinary Assay Laboratory, Tokyo (T. Asai); National Institute of Animal Health, Ibaraki, Japan (M. Akiba); Yokohama City Institute of Health, Kanagawa, Japan (Y. Matsumoto); and Rakuno Gakuen University, Hokkaido, Japan (Y. Tamura)
منابع مشابه
Delineating Anaplasma phagocytophilum Ecotypes in Coexisting, Discrete Enzootic Cycles
The emerging tick-borne pathogen Anaplasma phagocytophilum is under increasing scrutiny for the existence of subpopulations that are adapted to different natural cycles. Here, we characterized the diversity of A. phagocytophilum genotypes circulating in a natural system that includes multiple hosts and at least 2 tick species, Ixodes ricinus and the small mammal specialist I. trianguliceps. We ...
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Anaplasma phagocytophilum is an obligate intracellular bacterium and causes a febrile illness in humans and livestock. In nature, this bacterium is sustained in a tick-mammal cycle. Several p44/msp2-related genes are expressed from a single expression locus by gene conversion. In this study, we obtained 119 cDNA sequences of p44/msp2 transcripts from A. phagocytophilum in 6 Haemaphysalis ti...
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Ixodes scapularis ticks were collected in 2000 and 2001 from two areas in Pennsylvania and tested for the presence of Anaplasma phagocytophilum and Borrelia burgdorferi by PCR and DNA sequencing. Of the ticks collected from northwestern and southeastern Pennsylvania, 162 of 263 (61.6%) and 25 of 191 (13.1%), respectively, were found to be positive for B. burgdorferi. DNA sequencing showed >99% ...
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The msp2 and p44 genes encode polymorphic major outer membrane proteins that are considered unique to the intraerythrocytic agent of Anaplasma marginale and the intragranulocytic agent of Anaplasma phagocytophilum, respectively. In the present study, however, we found an msp2 gene in A. phagocytophilum that was remarkably conserved among A. phagocytophilum strains from human granulocytic anapla...
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