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Prevalence of Salmonella serovars isolated from reptiles in Norwegian zoos.

挪威动物园爬行动物中分离的沙门氏菌血清型的流行情况。

  • 影响因子:1.58
  • DOI:10.1186/s13028-020-0502-0
  • 作者列表:"Bjelland AM","Sandvik LM","Skarstein MM","Svendal L","Debenham JJ
  • 发表时间:2020-01-09
Abstract

BACKGROUND:Reptiles are known to be asymptomatic carriers of Salmonella spp. in their gastrointestinal mucosa and a variety of Salmonella serovars including exotic serovars mainly associated with reptiles as well as human pathogenic serovars have been isolated. There are many case reports of reptile-associated Salmonella infections worldwide, including one case in Norway in 2000. In August 2017, there was a legislative change in Norway that allowed more permissive reptile ownership and legalized the keeping of 19 different reptile species by private persons. There has been a concern that this new legislation will lead to an increase in reptile-associated salmonellosis in Norway, however knowledge is lacking on the occurrence of Salmonella spp. in Norwegian reptiles. The aim of this study was therefore to investigate the prevalence of Salmonella spp. in captive reptile species in Norway, identify the serovars and evaluate their zoonotic potential. Thus, cloacal swabs were taken from 53 snakes, 15 lizards and 35 chelonians from three Norwegian zoos, and assessed for the presence of Salmonella spp. by culture, biochemical testing and serotyping. RESULTS:In total, 43% of the reptiles were shedding Salmonella spp., with a prevalence of 62%, 67% and 3% in snakes, lizards and chelonians, respectively. A total of 26 different serovars were found, including Salmonella enterica spp. enterica (40%) and S. enterica spp. arizonae (4%), both of which are considered to have a high zoonotic potential. S. enterica spp. diarizonae, salamae and houtenae were also identified, however these serovars are considered to have a lower zoonotic potential. CONCLUSIONS:The current study demonstrates that captive Norwegian reptiles are carriers of potentially zoonotic Salmonella spp. Given the increasing popularity of reptiles as pets and the legislative change, reptile-associated salmonellosis could become an increasingly important public health concern in Norway. Adequate public information about the risk of Salmonella infection as well as preventive measures to avoid Salmonella transmission from reptiles to humans is needed. The risk of Salmonella infection is considered low when recommended precautions are taken and good hygiene exhibited.

摘要

背景: 已知爬行动物是沙门氏菌属的无症状携带者。在它们的胃肠道粘膜和各种沙门菌血清型中,已经分离出了主要与爬行动物有关的外来血清型以及人类致病性血清型。全世界有许多与爬行动物相关的沙门氏菌感染的病例报告,包括2000年挪威的一例。2017年8月,挪威发生了立法变化,允许更多的爬行动物所有权,并使私人保留19种不同的爬行动物合法化。有人担心这项新立法将导致挪威爬行动物相关沙门氏菌病的增加,但缺乏沙门氏菌的发生知识。在挪威爬行动物身上。因此,本研究的目的是调查沙门氏菌的流行情况。在挪威圈养的爬行动物物种中,鉴定血清型并评估其人畜共患潜力。因此,从来自三个挪威动物园的53条蛇、15只蜥蜴和35只chel蛇中取出泄殖腔拭子,并评估沙门氏菌的存在。通过培养、生化检测和血清分型。 结果: 总共有43% 的爬行动物脱落沙门氏菌,在蛇、蜥蜴和chel类中的流行率分别为62% 、67% 和3%。共发现26种不同的血清型,包括肠道沙门氏菌。enterica (40%) 和S. enterica spp.arizonae (4%),两者都被认为具有很高的人畜共患潜能。S. enterica spp.还鉴定了diarizonae、salamae和houtenae,然而这些血清型被认为具有较低的人畜共患潜能。 结论: 目前的研究表明,圈养的挪威爬行动物是潜在的人畜共患沙门氏菌的携带者。鉴于爬行动物作为宠物的日益普及和立法变化,与爬行动物相关的沙门氏菌病可能成为挪威日益重要的公共卫生问题。需要关于沙门氏菌感染风险的充分公开信息以及避免沙门氏菌从爬行动物传播给人类的预防措施。当采取推荐的预防措施并表现出良好的卫生条件时,认为沙门氏菌感染的风险较低。

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DOI:10.1093/labmed/lmz021
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