Salmonella contamination in poultry is a major public health concern worldwide. This study examined the prevalence and serotype distribution of Salmonella in clinical samples from poultry farms and in fecal and carcass samples from slaughterhouses in South Korea. A total of 525 samples were collected, including 33 clinical samples from broiler chicks and 492 samples from slaughterhouses. Salmonella was detected in 79 % of clinical samples, with S. Westhampton identified as the most prevalent serovar. In slaughterhouse samples, 9 % tested positive, with higher contamination in carcasses (15 %) than in fecal samples (4 %) (P < 0.05). S. Enteritidis was the only serovar present in all three sample types, reinforcing its significance in poultry and human infections. Seasonal variations showed increased Salmonella prevalence in slaughterhouses during warmer months, underscoring the need for enhanced control measures. These findings highlight the importance of biosecurity in farms and strict hygiene protocols in processing facilities to reduce Salmonella contamination in poultry production.

Keywords: Salmonella Enteritidis; Salmonella Westhampton; poultry farms; seasonal variation; serotype distribution.

Copyright © 2025. Published by Elsevier Inc.

家禽中的沙门氏菌污染是全球公共卫生的一大关注点。本研究调查了韩国家禽养殖场临床样本和屠宰场粪便及胴体样本中沙门氏菌的流行率和血清型分布情况。共收集了525份样本，其中包括来自肉鸡雏鸟的33份临床样本以及来自屠宰场的492份样本。79%的临床样本中检测到了沙门氏菌，最常见的血清型为S. Westhampton。在屠宰场样本中，有9%呈阳性反应，胴体样本中的污染率（15%）高于粪便样本（4%）（P

关键词：Salmonella Enteritidis；Salmonella Westhampton；家禽养殖场；季节变化；血清型分布

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