有证据表明水将创伤弧菌生物型2感染传播给鳗鱼。
Evidence that water transmits Vibrio vulnificus biotype 2 infections to eels.
作者信息
Amaro C, Biosca E G, Fouz B, Alcaide E, Esteve C
机构信息
Departamento de Microbiología, Facultad de Biología, Universidad de Valencia, Burjassot, Spain.
出版信息
Appl Environ Microbiol. 1995 Mar;61(3):1133-7. doi: 10.1128/aem.61.3.1133-1137.1995.
Abstract
Vibrio vulnificus biotype 2 is classically considered an obligate eel pathogen. However, it has recently been associated with one human septicemic case. In this paper, the opportunistic behavior of this pathogen is discussed. The bacterium can survive alone in brackish water or attached to eel surfaces for at least 14 days. It is able to spread through water and infect healthy eels by using skin as a portal of entry. These results suggest that water and infected eels may act as reservoirs of infection. A capsule seems to be essential for waterborne infectivity, which would explain why cells recovered from naturally diseased eels give rise to pure cultures of opaque colonies. The spread of the disease is dependent on temperature and water salinity, thus suggesting a method to reduce the risk of epizootics and that of infection for humans.
摘要
创伤弧菌生物型2传统上被认为是一种专性鳗鱼病原体。然而，最近它与一例人类败血症病例有关。本文讨论了这种病原体的机会性致病行为。该细菌能够在半咸水中单独存活，或附着在鳗鱼体表至少14天。它能够通过水传播，并以皮肤作为侵入门户感染健康鳗鱼。这些结果表明，水和受感染的鳗鱼可能是感染源。荚膜似乎对水传播感染至关重要，这可以解释为什么从自然患病鳗鱼中分离出的细胞会形成不透明菌落的纯培养物。疾病的传播取决于温度和水的盐度，因此提示了一种降低动物流行病风险和人类感染风险的方法。
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