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Appl. Environ. Microbiol., Oct 1996, 3887-3889, Vol 62, No. 10
Y Sato, K Miyamoto, A Iwaki, T Masuzawa, Y Yanagihara, EI Korenberg, NB Gorelova, VI Volkov, LI Ivanov and RN Liberova
Borrelia spirochetes were isolated from the adult ixodid tick (Ixodes
persulcatus) in three areas of far eastern Russia, namely, Khabarovsk,
Vladivostok, and Yuzhno-Sakhalinsk. Borrelia infective rates of ticks in
those areas were 24.5, 41.4, and 25.1%, respectively (total rate was
26.6%). Spirochetes were also isolated from the tissues of small mammals
captured at Khabarovsk (infective rate was 20.8%). Samples were classified
by rRNA gene restriction fragment length polymorphism (RFLP) analysis. The
isolated spirochetes from ticks were classified mainly RFLP ribotype group
IV (B. garinii), followed by groups II (B. garinii), III (B. afzelii), and
V (B. garinii), showing that B. garinii is a dominant species among them.
Both B. garinii and B. afzelii were also found in rodents, and multiple
infections with those two species were observed in some rodents. B.
burgdorferi sensu stricto (group I) was not isolated from either ticks or
rodents.
Copyright © 1996, American Society for Microbiology
Prevalence of Lyme disease spirochetes in Ixodes persulcatus and wild rodents in far eastern Russia
Department of Parasitology, Asahikawa Medical College, Hokkaido, Japan. yukita@asahikawa-med.ac.jp
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