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Ixodes ricinus and Borrelia burgdorferi sensu lato in the Royal Parks of London, UK
Experimental and Applied Acarology ( IF 2.2 ) Pub Date : 2021-06-14 , DOI: 10.1007/s10493-021-00633-3
Kayleigh M Hansford 1 , Liz McGinley 1 , Samantha Wilkinson 2 , Emma L Gillingham 1 , Ben Cull 1 , Sara Gandy 1 , Daniel P Carter 3 , Alexander G C Vaux 1 , Simon Richards 2 , Alister Hayes 2 , Jolyon M Medlock 1
Affiliation  

Assessing the risk of tick-borne disease in areas with high visitor numbers is important from a public health perspective. Evidence suggests that tick presence, density, infection prevalence and the density of infected ticks can vary between habitats within urban green space, suggesting that the risk of Lyme borreliosis transmission can also vary. This study assessed nymph density, Borrelia prevalence and the density of infected nymphs across a range of habitat types in nine parks in London which receive millions of visitors each year. Ixodes ricinus were found in only two of the nine locations sampled, and here they were found in all types of habitat surveyed. Established I. ricinus populations were identified in the two largest parks, both of which had resident free-roaming deer populations. Highest densities of nymphs (15.68 per 100 m2) and infected nymphs (1.22 per 100 m2) were associated with woodland and under canopy habitats in Richmond Park, but ticks infected with Borrelia were found across all habitat types surveyed. Nymphs infected with Borrelia (7.9%) were only reported from Richmond Park, where Borrelia burgdorferi sensu stricto and Borrelia afzelii were identified as the dominant genospecies. Areas with short grass appeared to be less suitable for ticks and maintaining short grass in high footfall areas could be a good strategy for reducing the risk of Lyme borreliosis transmission to humans in such settings. In areas where this would create conflict with existing practices which aim to improve and/or meet historic landscape, biodiversity and public access goals, promoting public health awareness of tick-borne disease risks could also be utilised.



中文翻译:

英国伦敦皇家公园的 Ixodes ricinus 和 Borrelia burgdorferi sensu lato

从公共卫生的角度来看,在游客人数较多的地区评估蜱传疾病的风险很重要。有证据表明,城市绿地内不同栖息地的蜱存在、密度、感染流行率和受感染蜱的密度可能不同,这表明莱姆疏螺旋体病传播的风险也可能不同。这项研究评估了伦敦九个公园内各种栖息地类型的若虫密度、疏螺旋体流行率和受感染若虫的密度,这些公园每年接待数百万游客。在所采样的九个地点中,仅在两个地点发现了蓖麻硬蜱,并且在所有调查的栖息地类型中都发现了它们。建立I. ricinus在两个最大的公园中确定了鹿群,这两个公园都有常驻的自由漫游鹿群。若虫(每 100 m 2 15.68 只)和受感染若虫(每 100 m 2 1.22 只)的最高密度与里士满公园的林地和树冠下栖息地有关,但在所有调查的栖息地类型中都发现了被疏螺旋体感染的蜱。若虫感染疏螺旋体(7.9%) 仅在列治文公园报告,那里有严格疏螺旋体螺旋体被确定为优势基因种。短草区域似乎不太适合蜱虫生长,在高人流量区域保持短草可能是降低莱姆疏螺旋体病在此类环境中传播给人类的风险的好策略。在这将与旨在改善和/或满足历史景观、生物多样性和公众获取目标的现有做法产生冲突的地区,也可以利用提高公众对蜱传疾病风险的认识。

更新日期:2021-06-14
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