de la Rue Mario L
Department of Microbiology and Parasitology, Federal University of Santa Maria, Santa Maria, RS, Brazil.
Rev Inst Med Trop Sao Paulo. 2008 Jan-Feb;50(1):53-6. doi: 10.1590/s0036-46652008000100012.
Cystic echinococcosis (CE) is very common in the southern part of Rio Grande do Sul State where sheep and cattle raising is the most important economical activity. Prevalence in intermediate hosts is well known due to reports in slaughterhouses while human reports are of discussed value. This is due to underreporting of cases and few epidemiological studies make it difficult to assess the situation of echinococcosis in the population. Whereas cattle infection rate is more or less stable around 12% of the slaughter animals, in sheep there has been an increasing number in the last five years. Some efforts have been done to control the zoonosis but no effective results were obtained so far. Probably educational efforts to change human practices (feeding dogs with raw viscera), periodic treatment of dogs with praziquantel and joined actions with slaughterhouses could bring more attention to improve some control measures.
囊型包虫病（CE）在南里奥格兰德州南部非常常见，该地区牛羊养殖是最重要的经济活动。由于屠宰场的报告，中间宿主的患病率是众所周知的，而人类报告的价值则存在争议。这是因为病例报告不足，而且很少有流行病学研究使得难以评估人群中的包虫病情况。虽然牛的感染率在屠宰动物中稳定在12%左右，但在过去五年中，绵羊的感染数量一直在增加。已经做出了一些努力来控制这种人畜共患病，但到目前为止没有取得有效的结果。可能通过教育努力改变人类行为（用生内脏喂狗）、定期用吡喹酮治疗狗以及与屠宰场联合行动，可以更加关注改进一些控制措施。
