Witkowska Dorota, Kuncewicz Marta, Żebrowska Joanna Paulina, Sobczak Jerzy, Sowińska Janina
University of Warmia and Mazury, Olsztyn, Poland.
Institute of Veterinary Hygiene, Olsztyn, Poland.
Ann Agric Environ Med. 2018 Dec 20;25(4):693-697. doi: 10.26444/aaem/99528. Epub 2018 Nov 30.
Zoonotic serotypes of subsp. are an important biological factor that poses a threat to public health, and broilers are often asymptomatic carriers of these bacteria. The aim of this study was to analyze the prevalence of spp. and serotypes in broiler chicken flocks in northern Poland in 2014-2016. The study was conducted on commercial flocks monitored by the Institutes of Veterinary Hygiene in Gdańsk and Olsztyn in 2014-2016. A total of 4,331 samples were investigated. Identification of spp. was performed by a culture-dependent method followed by biochemical and serological confirmation tests, in accordance with Polish Standards. The total percentage of infected flocks in northern Poland reached 1.57%. The prevalence of spp. in broiler chickens decreased from 2.19% in 2014 to 1.22% in 2016. The percentage of flocks infected with S. Enteritidis and S. Typhimurium was 1.18% and 0.12%, respectively (S. Enteritidis and S. Typhimurium were detected in 1.29% of flocks). The most common serotypes that had not been covered by the control programme were S. Mbandaka (0.14%), S. Infantis (0.07%) and, sporadically, S. Kentucky and S. Anatum. The percentage of infected flocks was higher (by 0.26%) in the Pomeranian Region than in the Region of Warmia and Mazury, and it increased over the analyzed period - the highest number of positive samples were found in 2016 (2.04%). In the Region of Warmia and Mazury, the percentage of infected flocks was highest in 2014 (3.08%); in 2014-2016, the number of positive samples decreased steadily to reach 0.41% in 2016. In the analyzed regions, the incidence of human salmonellosis was correlated with the percentage of infected broiler flocks.
亚种的人畜共患血清型是对公共卫生构成威胁的一个重要生物学因素，肉鸡往往是这些细菌的无症状携带者。本研究的目的是分析2014 - 2016年波兰北部肉鸡群中沙门氏菌属和血清型的流行情况。该研究于2014 - 2016年在格但斯克和奥尔什丁的兽医卫生研究所监测的商业鸡群中进行。共调查了4331份样本。沙门氏菌属的鉴定采用依赖培养的方法，随后根据波兰标准进行生化和血清学确认试验。波兰北部受感染鸡群的总百分比达到1.57%。肉鸡中沙门氏菌属的流行率从2014年的2.19%降至2016年的1.22%。感染肠炎沙门氏菌和鼠伤寒沙门氏菌的鸡群百分比分别为1.18%和0.12%（在1.29%的鸡群中检测到肠炎沙门氏菌和鼠伤寒沙门氏菌）。对照计划未涵盖的最常见血清型是班达卡沙门氏菌（0.14%）、婴儿沙门氏菌（0.07%），偶尔还有肯塔基沙门氏菌和鸭沙门氏菌。波美拉尼亚地区受感染鸡群的百分比高于瓦尔米亚和马祖里地区（高0.26%），并且在分析期内有所增加——2016年发现的阳性样本数量最多（2.04%）。在瓦尔米亚和马祖里地区，2014年受感染鸡群的百分比最高（3.08%）；在2014 - 2016年期间，阳性样本数量稳步下降，到2016年降至0.41%。在分析的地区，人类沙门氏菌病的发病率与受感染肉鸡群的百分比相关。
