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葡萄牙宠物爬行动物中的物种:患病率及葡萄糖酸氯己定的抗菌效果

spp. in Pet Reptiles in Portugal: Prevalence and Chlorhexidine Gluconate Antimicrobial Efficacy.

作者信息

Cota João B, Carvalho Ana C, Dias Inês, Reisinho Ana, Bernardo Fernando, Oliveira Manuela

机构信息

CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisboa, Portugal.

出版信息

Antibiotics (Basel). 2021 Mar 19;10(3):324. doi: 10.3390/antibiotics10030324.

Abstract

A fraction of human infections is associated with direct contact with reptiles, yet the number of reptile-associated Salmonellosis cases are believed to be underestimated. Existing data on spp. transmission by reptiles in Portugal is extremely scarce. The aim of the present work was to evaluate the prevalence of spp. in pet reptiles (snakes, turtles, and lizards), as well as evaluate the isolates' antimicrobial resistance and virulence profiles, including their ability to form biofilm in the air-liquid interface. Additionally, the antimicrobial effect of chlorhexidine gluconate on the isolates was tested. was isolated in 41% of the animals sampled and isolates revealed low levels of antimicrobial resistance. Hemolytic and lypolytic phenotypes were detected in all isolates. The majority (90.63%) of the isolates were positive for the formation of pellicle in the air-liquid interface. Results indicate chlorhexidine gluconate is an effective antimicrobial agent, against the isolates in both their planktonic and biofilm forms, demonstrating a bactericidal effect in 84.37% of the isolates. This study highlights the possible role of pet reptiles in the transmission of non-typhoidal to humans, a serious and increasingly relevant route of exposure in the public health framework.

摘要

人类感染中有一部分与直接接触爬行动物有关,但据信与爬行动物相关的沙门氏菌病病例数量被低估了。葡萄牙关于爬行动物传播沙门氏菌属的现有数据极为稀少。本研究的目的是评估宠物爬行动物(蛇、龟和蜥蜴)中沙门氏菌属的流行情况,以及评估分离株的抗菌耐药性和毒力特征,包括它们在气液界面形成生物膜的能力。此外,还测试了葡萄糖酸洗必泰对分离株的抗菌效果。在41%的采样动物中分离出了沙门氏菌,且分离株显示出较低水平的抗菌耐药性。在所有分离株中均检测到溶血和脂解表型。大多数(90.63%)沙门氏菌分离株在气液界面形成菌膜呈阳性。结果表明,葡萄糖酸洗必泰是一种有效的抗菌剂,对浮游形式和生物膜形式的分离株均有作用,在84.37%的沙门氏菌分离株中显示出杀菌效果。这项研究突出了宠物爬行动物在非伤寒沙门氏菌向人类传播中可能发挥的作用,这在公共卫生框架中是一条严重且日益相关的暴露途径。

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