Pieskus J, Milius J, Michalskiene I, Zagrebneviene G
Institute of Immunology of Vilnius University, Moletu pl. 29, LT-08409 Vilnius, Lithuania.
J Vet Med A Physiol Pathol Clin Med. 2006 Feb;53(1):12-6. doi: 10.1111/j.1439-0442.2006.00789.x.
We studied serovars of Salmonella strains isolated from chicken and humans in Lithuania over the period from 2000 to 2004. Salmonella strains were isolated and identified according to the techniques recommended by International Organisation for Standardization (Microbiology of Food and Animal Feeding Stuff--Horizontal Method for the Detection of Salmonella, 1998, ISO, Geneva). The per cent of infected flocks with Salmonella in separate years was between 1.01% and 3.2% during the period of investigation. The contamination rate of broiler legs and breasts was higher (2.36% and 4.25%) than that of wings (0.82%). Eighteen serovars of Salmonella were identified from the total 300 isolated samples. The most prevalent serovars in chicken were Salmonella Enteritidis, Salmonella Infantis and Salmonella Typhimurium. Other serovars such as Salmonella Montevideo, Salmonella Djugu, Salmonella Isangi, Salmonella Bovismorbificans, Salmonella Mbankada, Salmonella Hadar were detected only in one to two samples. In general, similar serovars of Salmonella were found in humans and chicken (S. Enteritidis and S. Typhimurium), although distinct serovars were found only in humans or only in chicken. Analysis of the distribution of Salmonella serovars in humans during the seasons of the year indicated that the highest incidence of Salmonella was in Summer and in the beginning of Autumn. Analysis of the distribution of serovars during the study period indicated that there is a shift over time in both humans and chicken.
我们研究了2000年至2004年期间在立陶宛从鸡和人类中分离出的沙门氏菌菌株的血清型。沙门氏菌菌株是根据国际标准化组织推荐的技术分离和鉴定的(《食品和动物饲料微生物学——沙门氏菌检测的水平方法》,1998年,ISO,日内瓦)。在调查期间,各年份感染沙门氏菌的鸡群百分比在1.01%至3.2%之间。肉鸡腿部和胸部的污染率(2.36%和4.25%)高于翅膀(0.82%)。从总共300个分离样本中鉴定出18种沙门氏菌血清型。鸡中最常见的血清型是肠炎沙门氏菌、婴儿沙门氏菌和鼠伤寒沙门氏菌。其他血清型,如蒙得维的亚沙门氏菌、朱古沙门氏菌、伊桑吉沙门氏菌、牛病沙门氏菌、姆班卡达沙门氏菌、哈达尔沙门氏菌仅在一两个样本中检测到。总体而言,在人类和鸡中发现了相似的沙门氏菌血清型(肠炎沙门氏菌和鼠伤寒沙门氏菌),尽管仅在人类或仅在鸡中发现了不同的血清型。对一年中不同季节人类沙门氏菌血清型分布的分析表明,沙门氏菌发病率最高的季节是夏季和秋季初。对研究期间血清型分布的分析表明,人类和鸡中的血清型都随时间发生了变化。