School of Pharmacy and Biochemistry, University of Buenos Aires (UBA), Humoral, Studies Institute, National Research Council (IDEHU-CONICET), Buenos Aires, Argentina.
Vet Parasitol. 2010 May 11;169(3-4):362-6. doi: 10.1016/j.vetpar.2010.01.005. Epub 2010 Jan 20.
In Argentina, Trichinella infection has been documented in humans and animals of several provinces since 1930. This zoonotic parasite infection has been recently detected in humans and pigs of a region historically considered as Trichinella-free, suggesting the spread of these pathogens. The aim of the present work was to investigate the presence of Trichinella infection in wild boars (Sus scrofa) and in the human population living in a protected area. Trichinella infection has been investigated by serology (in humans and wild boars) and by artificial digestion of wild boar muscles. The isolated Trichinella larvae have been identified at the species level by multiplex PCR. A geographical information system has been used to collect environmental data. The results showed the circulation of Trichinella spiralis in wild boars with a low parasite burden, and suggest the influence of human behavior on the transmission. The transplacental passage of parasite is postulated. It follows that the declaration of region as Trichinella-free should be carefully established by means of extensive monitoring programs, not only in humans and domestic animals but also in wildlife.
自 1930 年以来，在阿根廷的几个省份，已记录到人类和动物感染旋毛虫的病例。这种人畜共患寄生虫感染最近在一个历史上被认为无旋毛虫感染的地区的人类和猪中被检测到，这表明这些病原体正在传播。本研究的目的是调查受保护地区野猪（Sus scrofa）和当地居民中旋毛虫感染的情况。通过血清学方法（在人类和野猪中）和野猪肌肉的人工消化，对旋毛虫感染进行了检测。通过多重 PCR 对分离出的旋毛虫幼虫进行了种系鉴定。利用地理信息系统收集了环境数据。结果显示，野猪中存在低负荷的旋毛虫螺旋体感染，这表明人类行为对传播有影响。推测存在寄生虫经胎盘传播。因此，通过广泛的监测计划，不仅在人类和家畜中，而且在野生动物中，应仔细确定该地区的旋毛虫感染情况，以谨慎宣布该地区无旋毛虫感染。
