Monitoring for bovine arboviruses in the most southwestern islands in Japan between 1994 and 2014

BMC Veterinary Research

Research Article

Kazuo Yoshida¹  Makoto Yamakawa¹  Tohru Yanase²  Hiroaki Shirafuji²  Tomoko Kato²  Tomoyuki Tsuda³  Yoshito Katagiri⁴  Katsunori Takayoshi⁴  Moemi Suzuki⁴  Seiichi Ohashi⁵  Kazufumi Ikemiyagi⁶ 

[1] Exotic Disease Research Station, National Institute of Animal Health, 6-20-1 Josuihoncho, Kodaira, 187-0222, Tokyo, Japan;Kyushu Research Station, National Institute of Animal Health, NARO, 2702 Chuzan, 891-0105, Kagoshima, Japan;National Institute of Animal Health, NARO, 3-1-5 Kannondai, 305-0856, Tsukuba, Ibaraki, Japan;Okinawa Prefectural Institute of Animal Health, 1-24-29 Kohagura, 900-0024, Naha, Okinawa, Japan;Viral Disease and Epidemiology Research Division, National Institute of Animal Health, NARO, 3-1-5 Kannondai, 305-0856, Tsukuba, Ibaraki, Japan;Yaeyama Livestock Hygiene Service Center, 1-2 Miyara, 907-0022, Ishigaki, Okinawa, Japan;

关键词: Arbovirus;    Bovine ephemeral fever;    Cattle;    Culicoides;    Congenital abnormality;    Epizootic hemorrhagic disease;    Orbivirus;    Orthobunyavirus;    Rhabdovirus;    Serosurveillance;   

DOI  :  10.1186/s12917-016-0747-z

 received in 2015-09-08, accepted in 2016-06-16,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundIn Japan, epizootic arboviral infections have severely impacted the livestock industry for a long period. Akabane, Aino, Chuzan, bovine ephemeral fever and Ibaraki viruses have repeatedly caused epizootic abnormal births and febrile illness in the cattle population. In addition, Peaton, Sathuperi, Shamonda and D’Aguilar viruses and epizootic hemorrhagic virus serotype 7 have recently emerged in Japan and are also considered to be involved in abnormal births in cattle. The above-mentioned viruses are hypothesized to circulate in tropical and subtropical Asia year round and to be introduced to temperate East Asia by long-distance aerial dispersal of infected vectors. To watch for arbovirus incursion and assess the possibility of its early warning, monitoring for arboviruses was conducted in the Yaeyama Islands, located at the most southwestern area of Japan, between 1994 and 2014.ResultsBlood sampling was conducted once a year, in the autumn, in 40 to 60 healthy cattle from the Yaeyama Islands. Blood samples were tested for arboviruses. A total of 33 arboviruses including Akabane, Peaton, Chuzan, D’ Aguilar, Bunyip Creek, Batai and epizootic hemorrhagic viruses were isolated from bovine blood samples. Serological surveillance for the bovine arboviruses associated with cattle diseases in young cattle (ages 6–12 months: had only been alive for one summer) clearly showed their frequent incursion into the Yaeyama Islands. In some cases, the arbovirus incursions could be detected in the Yaeyama Islands prior to their spread to mainland Japan.ConclusionsWe showed that long-term surveillance in the Yaeyama Islands could estimate the activity of bovine arboviruses in neighboring regions and may provide a useful early warning for likely arbovirus infections in Japan. The findings in this study could contribute to the planning of prevention and control for bovine arbovirus infections in Japan and cooperative efforts among neighboring countries in East Asia.

【 授权许可】

CC BY   
© The Author(s). 2016