Bortoletti G, Capra S, Palmas C, Gabriele F
Istituto di Parassitologia, Università di Cagliari.
Parassitologia. 1989 Aug-Dec;31(2-3):251-7.
The prevalence of Echinococcus granulosus in sheep was examined in Sardinia between June and September 1987-1988. Of the examined sheep 243 were being pastured in fenced fields while 1084 were being pastured in open fields. An infection rate of 1.6% was recorded in the first group of sheep, and 86.7% in the second. The prevalence rate differed in various parts of the region, ranging from 79.4% (Oristano province) to 95% (Nuoro province). Of the parasitized sheep 7.9% harboured only fertile cysts, and 74.1% only sterile cysts. The latest figure is surprising compared to data previously reported in the literature. Most of the sheep examined were infected in both organs (67.4%) but only 27.4% of these showed a massive infection with over 10 hydatid cysts. The variation in prevalence rate and epidemiological implications are discussed.
1987年6月至1988年9月期间，在撒丁岛对绵羊细粒棘球绦虫的感染率进行了调查。在接受检查的绵羊中，243只在围栏牧场放牧，1084只在开阔牧场放牧。第一组绵羊的感染率为1.6%，第二组为86.7%。该地区不同地方的感染率有所不同，从79.4%（奥里斯塔诺省）到95%（努奥罗省）。在受寄生虫感染的绵羊中，7.9%仅怀有可育囊肿，74.1%仅怀有不育囊肿。与文献中先前报道的数据相比，后一个数字令人惊讶。大多数接受检查的绵羊两个器官都受到感染（67.4%），但其中只有27.4%表现为大量感染，有超过10个包虫囊肿。文中讨论了感染率的变化及其流行病学意义。
