PDF(Pubmed)
Abstract：
In the European Union, salmonellosis is one of the most important zoonoses reported. Poultry meat and egg products are the most common food matrices associated with Salmonella presence. Moreover, wild and domestic animals could represent an important reservoir that could favour the direct and indirect transmission of pathogens to humans. Salmonella spp. can infect carnivorous or omnivorous wild birds that regularly ingest food and water exposed to faecal contamination. Birds kept in captivity can act as reservoirs of Salmonella spp. following ingestion of infected prey or feed. In this paper, we describe the isolation of different Salmonella serovars in several species of raptors hosted in aviaries in an Italian wildlife centre and in the raw chicken necks used as their feed but intended for human consumption. Characterisations of strains were carried out by integrating classical methods and whole genome sequencing analysis. The strains of S. bredeney isolated in poultry meat and birds belonged to the same cluster, with some of them being multidrug-resistant (MDR) and carrying the Col(pHAD28) plasmid-borne qnrB19 (fluoro)quinolone resistance gene, thus confirming the source of infection. Differently, the S. infantis found in feed and raptors were all MDR, carried a plasmid of emerging S. infantis (pESI)-like plasmid and belonged to different clusters, possibly suggesting a long-lasting infection or the presence of additional undetected sources. Due to the high risk of fuelling a reservoir of human pathogens, the control and treatment of feed for captive species are crucial.
摘要：
在欧盟,沙门氏菌病是报道的最重要的人畜共患病之一。禽肉和蛋制品是与沙门氏菌存在相关的最常见的食物基质。此外，野生动物和家畜可能是一个重要的水库，可能有利于病原体直接和间接传播给人类。沙门氏菌属。会感染食肉或杂食性野生鸟类，这些鸟类经常摄入暴露于粪便污染的食物和水。圈养的鸟类可以充当沙门氏菌的水库。摄入受感染的猎物或饲料后。在本文中,我们描述了在意大利野生动物中心的鸟舍中托管的几种猛禽中不同沙门氏菌血清变型的分离，以及用作饲料但供人类食用的生鸡颈。通过整合经典方法和全基因组测序分析来进行菌株的表征。在禽肉和鸟类中分离出的S.bredeney菌株属于同一簇，其中一些是多药耐药（MDR），并携带Col（pHAD28）质粒携带的qnrB19（氟）喹诺酮耐药基因，从而确认感染源。不同的是,在饲料和猛禽中发现的婴儿链球菌都是MDR，携带了一个新兴的婴儿链球菌(pESI)样质粒，属于不同的簇，可能提示长期感染或存在其他未被发现的来源。由于助长人类病原体的风险很高，圈养物种饲料的控制和处理至关重要。
