Risk factors for farm-level African swine fever infection in major pig-producing areas in Nigeria, 1997-2011
Risk factors for farm-level African swine fever infection in major pig-producing areas in Nigeria, 1997-2011
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DOI：
10.1016/j.prevetmed.2012.05.011
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发表时间：
2012-11-01
影响因子：
2.6
通讯作者：
Bastos, A. D. S.
中科院分区：
文献类型：
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作者：
Fasina, F. O.;Agbaje, M.;Bastos, A. D. S.
非洲猪瘟(ASF)是一种对养猪业造成经济破坏的疾病，特别是在非洲。确定支持该地区猪场感染的因素仍然是制定基于风险的方法以了解非洲猪瘟流行病学和控制该疾病的关键组成部分。尼日利亚被用于这项匹配病例对照研究，因为在一些地区存在永久性感染，而相邻地区是间歇性感染。评估了猪场中与非洲猪瘟感染相关的危险因素和生物安全措施。随机选择位于猪群高密度地区和非洲猪瘟感染高危地区的猪场亚群进行分析。多变量分析中单变量分析中最合理的风险因素变量包括：农场的老板定期接触受感染的农场和其他农民,未经考验的猪被经常购买到农场爆发的过程中,有一个受感染的地区,其他牲畜都与猪,有一个存在的屠宰场屠宰猪社区的板,野生鸟类可以免费获得猪笔、工具和实现经常被猪农共享,有免费获取饲料商店的老鼠,从商业来源和饲料购买。只有在养猪社区中存在屠宰场(OR=8.20; CI95%=2.73, 24.63； P
African swine fever (ASF) is an economically devastating disease for the pig industry, especially in Africa. Identifying what supports infection on pig farms in this region remains the key component in developing a risk-based approach to understanding the epidemiology of ASF and controlling the disease. Nigeria was used for this matched case-control study, because there is perpetual infection in some areas, while contiguous areas are intermittently infected. Risk factors and biosecurity practices in pig farms were evaluated in association with ASF infection. Subsets of farms located in high-density pig population areas and high-risk areas for ASF infection were randomly selected for analysis. Most plausible risk factor variables from the univariable analysis included in the multivariable analysis include: owner of farm had regular contact with infected farms and other farmers, untested pigs were routinely purchased into the farm in the course of outbreaks, there was an infected neighbourhood, other livestock were kept alongside pigs, there was a presence of an abattoir/slaughter slab in pig communities, wild birds had free access to pig pens, tools and implements were routinely shared by pig farmers, there was free access to feed stores by rats, and feed was purchased from a commercial source.Only the presence of an abattoir in a pig farming community (OR=8.20; CI95%=2.73, 24.63; P