Palmer S R
Welsh Combined Centres for Public Health, University of Wales College of Medicine, Cardiff, UK.
Int J Epidemiol. 1995;24 Suppl 1:S34-8. doi: 10.1093/ije/24.supplement_1.s34.
Epidemiology investigations of outbreaks of infectious disease have to be carried out rapidly but must be methodologically sound. In 14 of 25 consecutive Salmonella outbreaks in Wales from 1986 to 1990 case-control or cohort studies were undertaken. Food vehicles of infection were identified by statistically significant associations with cases in 13 of the 14, including three outbreaks where there were less than 10 cases. The particular problems of epidemiological field investigations are discussed.
传染病暴发的流行病学调查必须迅速开展，但方法要合理。在1986年至1990年威尔士连续发生的25起沙门氏菌暴发事件中，有14起开展了病例对照研究或队列研究。在这14起事件中的13起中，通过与病例的统计学显著关联确定了感染的食物载体，其中包括3起病例数少于10例的暴发事件。文中讨论了流行病学现场调查的特殊问题。
