Schenone H, López R, Barilari E, Contreras M C, Castillo D
Departamento de Parasitología, Facultad de medicina, Universidad de Chile, Santiago, Chile.
Bol Chil Parasitol. 1997 Jan-Jun;52(1-2):22-5.
Surveillance of the epidemiology of human trichinosis in Chile has been maintained during the last 30 years by the Department of Parasitology. Incidence and prevalence have been followed-up by analysing Ministry of Health annual reports and periodical phototrichinoscopic examination of diaphragm samples from individuals autopsied at the Santiago Medico Legal Service. A decrease has been observed on: incidence from 1.4 per 100,000 in the 1960s to 0.7 in the 1980s down to 0.3 in 1993 and 1994 and to 0.5 in 1995, and prevalence from 3.4% to 2.8%, 2.0% and 0.8% in 1972, 1982, 1992 and 1997 respectively. A predominance of the prevalence in the groups of more age, with the observation of calcified Trichinella spiralis larvae should be indicating a decline of new infections in the general population. This decrease of frequency of human trichinosis in Chile is possible due to the interaction of two main factors, efficacy and higher implementation of control measures and significant advances in porcine technology with a resulting provision to consumers of pork from young animals practically trichinosis free.
在过去30年里，智利寄生虫学部门一直在对人体旋毛虫病的流行病学进行监测。通过分析卫生部的年度报告以及对圣地亚哥法医服务处尸检的个体膈肌样本进行定期的旋毛虫镜检查，对发病率和患病率进行了跟踪。观察到以下下降情况：发病率从20世纪60年代的每10万人1.4例降至80年代的0.7例，1993年和1994年降至0.3例，1995年降至0.5例；患病率在1972年、1982年、1992年和1997年分别从3.4%降至2.8%、2.0%和0.8%。年龄较大人群中的患病率较高，观察到旋毛虫幼虫钙化，这表明普通人群中的新感染有所下降。智利人体旋毛虫病发病率的下降可能是由于两个主要因素的相互作用：控制措施的有效性和更高的实施率，以及猪肉生产技术的重大进步，从而为消费者提供了几乎没有旋毛虫病的幼龄动物猪肉。
