Central Laboratory for Animal Diseases, Bingerville, Côte d'Ivoire.
Emerg Infect Dis. 2012 Sep;18(9):1446-52. doi: 10.3201/eid1809.111296.
To determine the extent of animal influenza virus circulation in Côte d'Ivoire, Benin, and Togo, we initiated systematic year-round active influenza surveillance in backyard birds (predominantly chickens, guinea fowl, and ducks) and pigs. A total of 26,746 swab specimens were screened by using reverse transcription PCR. Animal influenza prevalence was estimated at 0 (95% CIs for each of the 2 study years 0-0.04% to 0-1.48% [birds] and 0-0.28% to 0-5% [pigs]). In addition, 2,276 serum samples from the same populations were negative for influenza-specific antibodies. These data indicate that the environments and host populations previously identified as harboring high levels of influenza virus in Southeast Asia do not do so in these 3 countries. The combination of climate and animal density factors might be responsible for what appears to be the absence of influenza virus in the backyard sector of the 3 countries.
为了确定科特迪瓦、贝宁和多哥的动物流感病毒传播程度，我们开始对后院禽类（主要是鸡、珍珠鸡和鸭）和猪进行系统的全年主动流感监测。共筛选了 26746 个拭子标本。动物流感的流行率估计为 0（在 2 个研究年份中，每种动物的 95%置信区间为 0-0.04%至 0-1.48%[鸟类]和 0-0.28%至 0-5%[猪]）。此外，来自同一人群的 2276 份血清样本对流感特异性抗体呈阴性。这些数据表明，在东南亚被认为存在高水平流感病毒的环境和宿主群体在这 3 个国家并不存在。气候和动物密度因素的结合可能是导致这 3 个国家后院部门似乎没有流感病毒的原因。
