Environmental Factors Associated with Incidence and Distribution of V. parahaemolyticus and V. vulnificus in Chesapeake Bay, Maryland, USA: A three-year case study.
Environmental Factors Associated with Incidence and Distribution of V. parahaemolyticus and V. vulnificus in Chesapeake Bay, Maryland, USA: A three-year case study.
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美国马里兰州切萨皮克湾副溶血弧菌和创伤弧菌发病率和分布相关的环境因素：一项为期三年的案例研究。
DOI：
10.1101/2023.09.25.559351
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Jutla,AntarpreetS
中科院分区：
文献类型：
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作者：
Gangwar,Mayank;Usmani,Moiz;Jamal,Yusuf;Brumfield,KyleD;Huq,Anwar;Unnikrishnan,Avinash;Colwell,RitaR;Jutla,AntarpreetS
弧菌属的成员是具有重要生态意义的细菌，原产于全球水生生态系统，其中一些可引起人类疾病。近年来，与弧菌相关的疾病有所增加，主要归因于环境条件的变化。因此，了解环境因素在致病菌株发生和生长中的作用对于公共卫生至关重要。 2009年至2012年间，从美国马里兰州切萨皮克湾的切斯特河和丹吉尔海峡采集了水、牡蛎和沉积物样本，以研究水温、盐度和叶绿素与副溶血弧菌（VP）和创伤弧菌（VV）的发病率和分布之间的关系。使用优势比分析来确定 VP 和 VV 存在的可能性与这些环境变量之间的关联。结果表明，20°C 或更高的水温阈值与风险增加相关，有利于弧菌的发病。在两个采样点之间观察到盐度存在显着差异，不同的范围显示出弧菌发病率的高优势比，特别是在水和沉积物中，强调了盐度对 VP 和 VV 发病率和分布的影响。值得注意的是，9-20 PPT 之间的盐度始终有利于所有样本中弧菌的发生。叶绿素浓度与 VP 和 VV 发生率之间的关系因样品类型而异。然而，0–10 μg/L 的叶绿素范围被认为对于牡蛎样品中的两种弧菌至关重要。对水样比值比的分析表明，所有环境参数的结果一致，表明水样提供了更可靠的弧菌指标。发生率。
Members of the genus Vibrio are ecologically significant bacteria native to aquatic ecosystems globally, and a few can cause diseases in humans. Vibrio-related illnesses have increased in recent years, primarily attributed to changing environmental conditions. Therefore, understanding the role of environmental factors in the occurrence and growth of pathogenic strains is crucial for public health. Water, oyster, and sediment samples were collected between 2009 and 2012 from Chester River and Tangier Sound sites in Chesapeake Bay, Maryland, USA, to investigate the relationship between water temperature, salinity, and chlorophyll with the incidence and distribution of Vibrio parahaemolyticus (VP) and Vibrio vulnificus (VV). Odds ratio analysis was used to determine association between the likelihood of VP and VV presence and these environmental variables. Results suggested that water temperature threshold of 20°C or higher was associated with an increased risk, favoring the incidence of Vibrio spp. A significant difference in salinity was observed between the two sampling sites, with distinct ranges showing high odds ratio for Vibrio incidence, especially in water and sediment, emphasizing the impact of salinity on VP and VV incidence and distribution. Notably, salinity between 9–20 PPT consistently favored the Vibrio incidence across all samples. Relationship between chlorophyll concentrations and VP and VV incidence varied depending on sample type. However, chlorophyll range of 0–10 μg/L was identified as critical in oyster samples for both vibrios. Analysis of odds ratios for water samples demonstrated consistent outcomes across all environmental parameters, indicating water samples offer a more reliable indicator of Vibrio spp. incidence.