Salmonella infections in poultry farms are overlooked in many African countries; yet these infections are mostly zoonotic with impact on both poultry industry and public health. Considering the impact of Salmonella in laying hens, and the role of laying hens as a source of Salmonella outbreak in human, knowledge of the status of Salmonella on laying hen farms as well as the factors influencing the presence of Salmonella is important. In a cross sectional study, cloacal swabs were collected from 270 commercial laying hens on 27 farms located in Menoua Division. These samples were cultured on standard media. A questionnaire was used to collect information on animals, farms and farmer's characteristics. The prevalence of Salmonella was 93.34%; three zoonotic isolates namely S. Enteritidis (75.90%), S. Paratyphi (11.90%), and S. Typhimurium (5.60%) were identified. The location of farms was significantly associated with presence of Salmonella, and the risk of infection was 10-fold higher in Nkong-ni than Santchou (p < 0.05). Other potential risk factors such as flock size, age of the farm (infrastructure), or water source were not associated with Salmonella infection. The prophylactic measures against avian diseases in the country must include measures against Salmonella to protect poultry industry and public health.

中文翻译：

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喀麦隆西部地区（中部非洲）梅努瓦州产蛋鸡沙门氏菌感染的危险因素。

在许多非洲国家，家禽养殖场中的沙门氏菌感染被忽视了。但是这些感染大多是人畜共患疾病，对家禽业和公共卫生都有影响。考虑到沙门氏菌对蛋鸡的影响以及蛋鸡作为沙门氏菌暴发源的作用，了解沙门氏菌在蛋鸡场中的状况以及影响沙门氏菌存在的因素非常重要。在一项横断面研究中，从位于梅努阿省27个农场的270头商业蛋鸡收集泄殖腔拭子。这些样品在标准培养基上培养。使用问卷调查收集有关动物，农场和农民特征的信息。沙门氏菌的患病率为93.34％；三种人畜共患病分离株，即肠炎沙门氏菌（75.90％），副伤寒沙门氏菌（11.90％）和鼠伤寒沙门氏菌（5。60％）被确定。农场的位置与沙门氏菌的存在显着相关，Nkong-ni的感染风险比Santchou高10倍（p <0.05）。其他潜在的危险因素，例如鸡群大小，农场的年龄（基础设施）或水源与沙门氏菌感染无关。该国针对禽类疾病的预防措施必须包括针对沙门氏菌的措施，以保护家禽业和公共健康。