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Extreme precipitation events and increased risk of campylobacteriosis in Maryland, U.S.A

机译:美国马里兰州发生极端降水事件和弯曲菌病风险增加

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摘要

Consumption of contaminated poultry, raw milk and water are significant risk factors for Campylobacter infection. Previous studies also have investigated the association between weather (temperature and precipitation) and increased risk of campylobacteriosis, but limited information exists regarding the impacts of extreme heat and precipitation events on campylobacteriosis risk, and how such risk may differentially impact coastal communities. We obtained Campylobacter case data 2002-2012; n=4804) from the Maryland Foodborne Diseases Active Surveillance Network (FoodNet). We identified extreme heat and extreme precipitation events during this time (2002-2012) using location and calendar day specific thresholds (95th percentile for extreme heat and 90th percentile for extreme precipitation) that were computed based on a 30-year baseline (1960-1989). We linked these datasets using GIS and used negative binomial generalized estimating equations adjusted for demographic confounders to calculate the association between exposure to extreme events and risk of campylobacteriosis in Maryland. We observed that a one-day increase in exposure to extreme precipitation events was associated with a 3% increase in risk of campylobacteriosis in coastal areas of Maryland (Incidence Rate Ratio (IRR): 1.03, 95% confidence interval (CI): 1.01,1.05), but such an association was not observed in noncoastal areas. Furthermore, the risk associated with extreme precipitation events was considerably higher during La Nina periods (IRR: 1.09,95% CI: 1.05,1.13), while there was no evidence of elevated risk during El Nino or ENSO Neutral periods. Exposure to extreme heat events was not associated with an increased risk of campylobacteriosis, except during La Nina periods (IRR: 1.04, 95% CI: 1.01, 1.08). Extreme precipitation events could result in flooding within coastal areas that may bring water contaminated with bacterial pathogens (originating from sources such as septic systems, municipal wastewater treatment plants and concentrated animal feeding operations) into close proximity with individuals, where frequency of contact may be higher.
机译:食用受污染的家禽,生奶和水是弯曲杆菌感染的重要危险因素。先前的研究还调查了天气(温度和降水)与弯曲菌病风险增加之间的关联,但是关于极端高温和降水事件对弯曲菌病风险的影响以及这种风险如何差异影响沿海社区的信息有限。我们获得了2002-2012年弯曲杆菌病例数据; n = 4804)来自马里兰州食源性疾病主动监测网络(FoodNet)。我们使用基于30年基线(1960-1989)的位置和日历日特定阈值(极端热量的95%和极端降水的90%)确定了这段时间(2002-2012年)内的极端高温和极端降水事件。 )。我们使用GIS链接了这些数据集,并使用针对人口混杂因素调整的负二项式广义估计方程式来计算极端事件暴露与马里兰州弯曲杆菌病风险之间的关联。我们观察到,在马里兰州沿海地区,极端降水事件暴露的一天增加与弯曲菌病风险增加3%相关(发生率(IRR):1.03,95%置信区间(CI):1.01, 1.05),但在非沿海地区未观察到这种关联。此外,在拉尼娜时期,与极端降水事件相关的风险要高得多(IRR:1.09,95%CI:1.05,1.13),而没有证据表明在厄尔尼诺或ENSO中性时期有升高的风险。除在拉尼娜时期外(IRR:1.04,95%CI:1.01,1.08),暴露于极端高温事件与弯曲菌病风险增加无关。极端的降雨事件可能导致沿海地区发生洪水,从而使被细菌病原体污染的水(源自化粪池系统,市政废水处理厂和集中的动物饲养场等来源)与接触频率较高的个体紧密接触。 。

著录项

  • 来源
    《Environmental research》 |2016年第8期|216-221|共6页
  • 作者单位

    Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD, United States;

    Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD, United States;

    Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD, United States;

    Earth System Science Interdisciplinary Center, College of Computer, Mathematical and Natural Sciences, University of Maryland, College Park, MD, United States;

    Prevention and Health Promotion Administration, Maryland Department of Health and Mental Hygiene, Baltimore, MD, United States;

    Prevention and Health Promotion Administration, Maryland Department of Health and Mental Hygiene, Baltimore, MD, United States;

    Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD, United States;

    Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD, United States;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Campylobacteriosis; Climate change; Coastal vulnerability; El Nino; La Nina;

    机译:弯曲菌病;气候变化;沿海脆弱性;厄尔尼诺;拉尼娜;

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