Adesiyun A, Offiah N, Seepersadsingh N, Rodrigo S, Lashley V, Musai L, Georges K
School of Veterinary Medicine, Faculty of Medical Sciences, University of the West Indies, St Augustine Campus, Trinidad and Tobago.
Epidemiol Infect. 2005 Dec;133(6):1049-56. doi: 10.1017/S0950268805004565.
A survey of the microbial quality of table eggs sold in Trinidad was conducted. For 23 poultry layer farms each visited twice approximately 1 month apart, 25 pooled eggs constituted a composite sample, for 14 shopping malls each visited twice approximately 1 month apart, six pooled eggs made a composite sample and for a total of 102 other retailers across the country each visited once over a 4-month period, six pooled eggs constituted a composite sample. Swabs of egg shells and egg content were tested for selected bacteria. Twenty-four (13.0%), 68 (37.0%), and two (1.1%) of a total of 184 composite eggs (shells, egg content or both) sampled were positive for Salmonella, Escherichia coli, and Campylobacter respectively. All 184 samples tested were negative for Listeria spp. Salmonella was recovered from seven (3.8%) egg shell samples only compared with 14 (7.6%) egg content samples only positive for the pathogen. Fifty-two (28.3%) egg shell samples and seven (3.8%) egg content samples were positive for E. coli. Both isolates of Campylobacter coli originated from egg contents. Of a total of 24 composite egg samples positive for Salmonella, eight different serotypes of Salmonella were isolated from a total of 24 Salmonella-positive composite eggs of which S. Enteritidis was the most prevalent, 58.3% (14/24). Salmonella Georgia was isolated for the first time in Trinidad. Failure to properly handle or heat table eggs sold in Trinidad poses a potential health hazard to consumers because of their poor microbial quality.
对特立尼达岛销售的食用鸡蛋的微生物质量进行了一项调查。对于23个家禽养殖场，每个养殖场大约相隔1个月访问两次，每次采集25个合并鸡蛋作为一个综合样本；对于14个购物中心，每个购物中心大约相隔1个月访问两次，每次采集6个合并鸡蛋作为一个综合样本；对于全国总共102家其他零售商，在4个月的时间内每家访问一次，每次采集6个合并鸡蛋作为一个综合样本。对蛋壳和蛋液拭子进行了选定细菌的检测。在总共184个采集的综合鸡蛋样本（蛋壳、蛋液或两者）中，分别有24个（13.0%）、68个（37.0%）和2个（1.1%）对沙门氏菌、大肠杆菌和弯曲杆菌呈阳性。所有184个检测样本对李斯特菌属均呈阴性。仅从7个（3.8%）蛋壳样本中检出沙门氏菌，而仅对该病原体呈阳性的蛋液样本有14个（7.6%）。52个（28.3%）蛋壳样本和7个（3.8%）蛋液样本对大肠杆菌呈阳性。两株空肠弯曲菌均来自蛋液。在总共24个对沙门氏菌呈阳性的综合鸡蛋样本中，从总共24个沙门氏菌阳性综合鸡蛋中分离出8种不同血清型的沙门氏菌，其中肠炎沙门氏菌最为常见，占58.3%（14/24）。佐治亚沙门氏菌首次在特立尼达岛被分离出来。由于特立尼达岛销售的食用鸡蛋微生物质量较差，若处理不当或未充分加热，会对消费者构成潜在健康危害。
