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首页> 外文期刊>Zoonoses and Public Health >Enhanced threat of tick-borne infections within cities? Assessing public health risks due to ticks in urban green spaces in Helsinki, Finland
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Enhanced threat of tick-borne infections within cities? Assessing public health risks due to ticks in urban green spaces in Helsinki, Finland

机译：增强城市内蜱传染的威胁？ 由于芬兰赫尔辛基的城市绿地蜱虫评估公共卫生风险

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摘要

Most tick-related studies in Europe have been conducted in nonurban areas, but ticks and tick-borne pathogens also occur in urban green spaces. From a public health perspective, risks regarding tick-borne infections should be studied in these urban areas, where contacts between infected ticks and humans may be more frequent than elsewhere, due to high human activity. We examined the risk of encountering an infected tick in urban green spaces in Helsinki, Finland. We collected ticks at nine sites throughout Helsinki, recorded the prevalence of several pathogens and identified areas with a high potential for contacts between infected ticks and humans. Moreover, we explored the relationship between the density ofBorrelia burgdorferisensu lato-infected ticks and locally diagnosed cases of borreliosis and compared the potential for human-tick encounters in Helsinki to those in nonurban areas in south-western Finland. During 34.8 km of cloth dragging, 2,417Ixodes ricinuswere caught (402 adults, 1,399 nymphs and 616 larvae). From analysed nymphs, we found 11 distinct tick-borne pathogens, with 31.5% of nymphs carrying at least one pathogen. Tick activity was highest in August and September, leading to the density of nymphs infected withB. burgdorferis.l., and concurrently infection risk, to also be highest during this time. Nymph densities varied between the sampling sites, with obvious implications to spatial variation in infection risk. While ticks and tick-borne pathogens were found in both Helsinki and nonurban areas in south-western Finland, the estimates of human activity were generally higher in urban green spaces, leading to a higher potential for human-tick contacts therein. The presence of ticks and tick-borne pathogens and high local human activity in urban green spaces suggest that they form potential foci regarding the acquisition of tick-borne infections. Risk areas within cities should be identified and knowledge regarding urban ticks increased.
机译：欧洲的大多数蜱相关的研究已经在非居社区进行，但蜱和蜱传播病症也发生在城市绿地中。从公共卫生角度来看，应在这些城市地区研究有关蜱传染的风险，受感染蜱和人类之间的接触可能比人类活动高于其他地方。我们审查了芬兰赫尔辛基的城市绿地中遇到受感染的蜱虫的风险。我们收集了赫尔辛基的九个网站的蜱虫，记录了几种病原体的患病率，并确定了受感染蜱和人类之间的接触的高潜力的区域。此外，我们探讨了Burgdorferisensu Lato感染的蜱虫密度与潜在诊断的孕妇病例之间的关系，并将赫尔辛基遇到的人为蜱虫与芬兰西南部非居族地区的潜力进行了比较。在34.8公里的布拖拖动期间，2,417ixodes蓖麻ricinuswere捕获（402名成人，1,399名若虫和616只幼虫）。从分析的若虫，我们发现11种不同的蜱传病原体，31.5％的若虫携带至少一种病原体。蜱虫活动于8月和9月最高，导致感染若虫的密度。 Burgdorferis.l。和同时感染风险，也是在此期间的最高风险。若虫密度在抽样场所之间变化，具有明显对感染风险的空间变异的影响。虽然在芬兰西南部的赫尔辛基和非居社区发现蜱和蜱虫病，但城市绿色空间的人类活动估计通常较高，导致其中人蜱接触的潜力更高。城市绿色空间中的蜱和蜱传播病原体和高地人类活动表明，他们形成了关于收购蜱传染的潜在焦点。应确定城市内风险区域，并有关城市蜱虫的知识增加。

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