Department of Animal Health, Campus de Excelencia Internacional Agroalimentario ceiA3, University of Cordoba, Cordoba, Spain.
Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain; Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
Prev Vet Med. 2014 May 1;114(2):106-13. doi: 10.1016/j.prevetmed.2014.01.019. Epub 2014 Jan 30.
An extensive epidemiological study was performed to determine the prevalence and risk factors of Campylobacter infection in broiler farms in Andalusia (southern Spain). A total of 2221 cloacal swabs and 747 environmental swabs from 291 broiler flocks were screened between April 2010 and May 2012. The prevalence of Campylobacter in individual animals was 38.1%, and the flock prevalence was 62.9%. Flocks were predominantly infected by C. jejuni and C. coli but were also infected by untyped Campylobacter spp., and mixed-species infection could be found. Risk factors for Campylobacter infection were assessed from direct interview of the farmers. The number of positive samples by flock was modelled assuming a binomial distribution. Analysis indicated five factors associated with increased intra-flock prevalence: presence of dogs or cats on the farm, older age of the broiler flock, the application of thinning of flocks, the presence of windows with canvas blinds, and the presence of rodents in the poultry house. Two factors were associated with decreased intra-flock prevalence: the treatment of drinking water and having an entrance room for access into the poultry house. This is the first study performed on broilers farms from Spain reporting the risk factors of Campylobacter infection and is the largest study on the prevalence of Campylobacter infection.
一项广泛的流行病学研究旨在确定西班牙南部安达卢西亚地区肉鸡养殖场中弯曲杆菌感染的流行情况和危险因素。2010 年 4 月至 2012 年 5 月期间，共从 291 个肉鸡群中采集了 2221 份泄殖腔拭子和 747 份环境拭子。个体动物中弯曲杆菌的流行率为 38.1%，群体流行率为 62.9%。鸡群主要感染空肠弯曲菌和大肠弯曲菌，但也感染未分型弯曲杆菌属，并且可能存在混合感染。从农民的直接访谈中评估了弯曲杆菌感染的危险因素。假设群体中存在二项分布，对阳性样本数量进行了建模。分析表明，有五个因素与群体内感染率增加有关：农场存在狗或猫、肉鸡群年龄较大、鸡群稀疏、禽舍有带帆布百叶窗的窗户以及禽舍中有啮齿动物。有两个因素与群体内感染率降低有关：饮用水处理和有进入禽舍的入口室。这是西班牙首次对肉鸡养殖场进行的弯曲杆菌感染危险因素研究，也是最大规模的弯曲杆菌感染流行率研究。
