Canine distemper virus infection among wildlife before and after the
epidemic |
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Authors: | Junko SUZUKI Yohei NISHIO Yuki KAMEO Yutaka TERADA Ryusei KUWATA Hiroshi SHIMODA Kazuo SUZUKI Ken MAEDA |
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Institution: | 1)Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677–1 Yoshida, Yamaguchi 753–8515, Japan;2)Hikiiwa Park Center, 1629 Inari-cho, Tanabe, Wakayama 646–0051, Japan |
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Abstract: | In 2007–2008, a canine distemper virus (CDV) epidemic occurred among wild animals in
Wakayama Prefecture, Japan, and many mammals, including the wild boar and deer, were
infected. In this study, CDV prevalence among wild animals was surveyed before and after
the epidemic. At first, an enzyme-linked immunosorbent assay (ELISA) with horseradish
peroxidase-conjugated protein A/G was established to detect CDV antibodies in many
mammalian species. This established ELISA was available for testing dogs, raccoons and
raccoon dogs as well as virus-neutralization test. Next, a serological survey of wild
mammalians was conducted, and it was indicated that many wild mammalians, particularly
raccoons, were infected with CDV during the epidemic, but few were infected before and
after the epidemic. On the other hand, many raccoon dogs died during the epidemic, but CDV
remained prevalent in the remaining population, and a small epidemic occurred in raccoon
dogs in 2012–2013. These results indicated that the epidemic of 2007–2008 may have been
intensified by transmission to raccoons. |
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Keywords: | canine distemper virus raccoon raccoon dog |
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