Sawabe Kyoko, Tanabayashi Kiyoshi, Hotta Akitoyo, Hoshino Keita, Isawa Haruhiko, Sasaki Toshinori, Yamada Akio, Kurahashi Hiromu, Shudo Chieko, Kobayashi Mutsuo
Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
J Med Entomol. 2009 Jul;46(4):852-5. doi: 10.1603/033.046.0416.
In a previous study, the highly pathogenic avian influenza (HPAI) H5N1 viruses were isolated from blow flies collected at the Tamba Town of Kyoto prefecture during the outbreak period in March 2004. In this study, we carried out virus exposure experiments to investigate whether the H5N1 virus would survive in a blow fly, Calliphora nigribarbis. The virus exposure experiments showed that the H5N1 influenza virus was isolated from the crop and intestine of C. nigribarbis for at least 24 h, and the viruses remained viable with titers ranging from 0.5 to 4.63 TCID50. This result suggests that C. nigribarbis could possibly transport the H5N1 virus over a distance of 2 km, which is the distance they can migrate within 24 h.
在先前的一项研究中，高致病性禽流感（HPAI）H5N1病毒是从2004年3月疫情爆发期间在京都府丹波市采集的厩螫蝇中分离出来的。在本研究中，我们进行了病毒暴露实验，以调查H5N1病毒是否能在黑须污蝇中存活。病毒暴露实验表明，从黑须污蝇的嗉囊和肠道中至少在24小时内分离出了H5N1流感病毒，并且这些病毒仍然存活，滴度范围为0.5至4.63半数组织培养感染剂量（TCID50）。这一结果表明，黑须污蝇有可能在2公里的距离内传播H5N1病毒，这是它们在24小时内能够迁移的距离。
