Okano Tsukasa, Haga Atsushi, Mizuno Eriko, Onuma Manabu, Nakaya Yumiko, Nagamine Takashi
1 Ecological Genetics Analysis Section, Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
J Wildl Dis. 2014 Apr;50(2):322-5. doi: 10.7589/2013-03-050. Epub 2014 Feb 5.
Angiostrongylus cantonensis is a zoonotic nematode with rodents serving as natural definitive hosts. We report A. cantonensis in the Ryukyu Islands tree rat (Diplothrix legata, Thomas, 1906), a native endangered species in Japan. Adult and larvae of A. cantonensis were macroscopically, histologically, and genetically detected in three tree rats collected between August 2011 and January 2012 in the Yambaru area of Okinawa Prefecture, Japan. Pathologic observations of the lungs of rats showed that infection may be lethal. We also conducted a retrospective genetic survey of helminths parasitic in lung in cryopreserved lung samples of Ryukyu Islands tree rats collected between 2007 and 2011 in the Yambaru area and found A. cantonensis DNA in one of 29 samples, which was collected in December 2010.
广州管圆线虫是一种人畜共患的线虫，啮齿动物是其天然终宿主。我们报告在日本本土濒危物种琉球群岛树鼠（Diplothrix legata，托马斯，1906年）中发现了广州管圆线虫。2011年8月至2012年1月期间，在日本冲绳县国头郡的八重岳地区采集的三只树鼠体内，通过宏观、组织学和基因检测发现了广州管圆线虫的成虫和幼虫。对树鼠肺部的病理观察表明，感染可能是致命的。我们还对2007年至2011年期间在八重岳地区采集的琉球群岛树鼠冷冻保存肺样本中寄生在肺部的蠕虫进行了回顾性基因调查，在29个样本中的一个（于2010年12月采集）中发现了广州管圆线虫的DNA。
