Beard T C
Lancet. 1978 Jul 1;2(8079):30-2. doi: 10.1016/s0140-6736(78)91336-3.
Human hydatid disease caused by the strain of Echinococcus granulosus endemic in Australia and New Zeland has been regarded as a very lonstanding condition, and most cysts diagnosed in adults were believed to have resulted from infection in childhood. A significant drop in the number of new cases among people and 25 and over (P less than 0.05) in two hydatid-control programmes makes it necessary to revise this view. In both Tasmania (P greater than 0.50) and New Zealand (0.50 greater than P greater than 0.10) the incidence was halved without significantly altering the age-distribution. These findings indicate that adults are relatively susceptible and that the latent period between infection and diagnosis in many cases is only a few years.
由澳大利亚和新西兰地方流行的细粒棘球绦虫菌株引起的人类包虫病一直被认为是一种长期存在的病症，大多数在成年人中诊断出的囊肿被认为是儿童时期感染所致。在两项包虫病控制项目中，25岁及以上人群中的新病例数显著下降（P小于0.05），这使得有必要修正这一观点。在塔斯马尼亚（P大于0.50）和新西兰（0.50大于P大于0.10），发病率均减半，且年龄分布没有显著变化。这些发现表明成年人相对易感，并且在许多情况下，感染与诊断之间的潜伏期仅为数年。
