Investigation and Diagnostic Centre, Wallaceville, Biosecurity New Zealand, Ministry of Agriculture and Forestry, P.O. Box 40742, Upper Hutt 5018, New Zealand.
Vet Parasitol. 2011 Mar 10;176(2-3):177-84. doi: 10.1016/j.vetpar.2010.10.058. Epub 2010 Nov 5.
The paper describes the epidemiological investigation carried out on two dairy farms with cattle infected with Taenia saginata cysts. On the first affected farm it was estimated using Bayesian techniques that approximately 65% of 1400 mixed-age cattle were infected with Taenia saginata cysts. The investigation aimed to determine potential exposure pathways of cattle to Taenia saginata with a view to finding the human source of infection and to describe the epidemiology of the outbreak on the affected farms. In order to determine potential exposure pathways, investigation was centred on how feed or water could have been contaminated with eggs. The plausibility of pathways was determined by examining the spatial and temporal association between factors related to the pathway and the prevalence of infection in cattle strata. We describe the investigation carried out on affected farms.
本文描述了对两家感染有囊尾蚴的奶牛场进行的流行病学调查。在第一个受感染的农场，使用贝叶斯技术估计，大约 65%的 1400 头混龄牛感染了有囊尾蚴。调查旨在确定牛感染囊尾蚴的潜在暴露途径，以期找到感染的人类来源，并描述受感染农场的疫情爆发情况。为了确定潜在的暴露途径，调查集中在饲料或水如何可能被虫卵污染。通过检查与途径相关的因素与牛群感染率之间的时空关联，来确定途径的合理性。我们描述了在受感染的农场进行的调查。
