Longitudinal study of prevalence and spatio‐temporal distribution of <i>Borrelia burgdorferi</i> sensu lato in ticks from three defined habitats in Latvia, 1999–2010

Okeyo, Mercy; Hepner, Sabrina; Rollins, Robert E.; Hartberger, Christina; Straubinger, Reinhard K.; Marosevic, Durdica; Bannister, Stephanie A.; Bormane, Antra; Donaghy, Michael; Sing, Andreas; Fingerle, Volker; Margos, Gabriele

doi:10.1111/1462-2920.15100

Cited by 17 publications

(8 citation statements)

References 102 publications

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“…The overall prevalence of the pathogen B. burgdorferi s.l. slightly decreased over the 4-year study period, which is similar to what has previously been observed in Latvia and Norway (Mysterud et al, 2013;Okeyo et al, 2020;Rosef et al, 2009). This result is probably associated with the increase of the roe deer population, which has been observed in the Netherlands over the last 60 years (Bruinderink & Broekhuizen, 2016).…”

Section: Horizontally-transmitted Pathogenssupporting

confidence: 86%

Questing microbioticks : Interactions of microbes, ticks, vertebrates, and the environment

Krawczyk

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The influence of external (a)biotic factors on the maintenance of symbionts in tick populations depends much on symbionts' mode of transmission. (this thesis) <. Ticks choose their symbionts rather than symbionts choose their ticks. (this thesis) =. An infection that is a burden for an individual can be beneficial for a population. @. The !AS rRNA amplicon sequencing technique is a powerful tool for forming hypotheses. H. We are selective about who or what should be a member of the (bio)diversity we want to preserve. A. Nowadays, it is difficult to distinguish what we really think from what we have read online.

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Section: Horizontally-transmitted Pathogenssupporting

confidence: 86%

Questing microbioticks : Interactions of microbes, ticks, vertebrates, and the environment

Krawczyk

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“…afzelii genospecies/ species occurrence. Similar year-to-year variations were shown in I. ricinus ticks removed from humans in Germany [37,38] and in questing ticks collected in Europe [9,22,60]. It is well-known that the distribution and prevalence of Borrelia spp.…”

Section: Discussionsupporting

confidence: 66%

Long-Term Study of Borrelia and Babesia Species Distribution in Ixodes Ricinus and Dermacentor Recticulatus Ticks Removed From Humans in Poland, 2016-2019

Welc-Falęciak

Bednarska

Hamera

et al. 2021

Preprint

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Monitoring changes in the prevalence of different Borrelia genospecies/ species in ticks might be an important indicator of risk assessment and of differences in pathogenicity in humans. Furthermore, the evaluation of pathogens in feeding ticks represents the risk of human exposure better than studies on questing ticks. The objective of our study was to assess the prevalence and distribution of Borrelia and Babesia species in ticks removed from humans, in a larger sample collected for several months during four years of studies. We confirmed high Borrelia prevalence, including B. miyamotoi, in ticks removed from humans as well as the shift in Borrelia genospecies/ species frequency of occurrence during the four-year study. Despite the fact that Babesia prevalence was relatively low, the majority of tested isolates are considered to be pathogenic for humans. The results of our study have also shown that Borrelia and Babesia coinfections in ticks are more common in Borrelia-infected ticks. Even if the overall risk of developing Lyme borreliosis after a tick bite in Europe is rather low, the knowledge of prevalence and distribution of Borrelia and Babesia species in ticks might be an important indicator of both tick-borne disease risk and pathogenicity assessment.

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“…In none of the study locations was a significant increase in DIN observed over the study period. Okeyo et al [ 26 ] studied NIP in the summer period in Latvia and reported a decrease in NIP over the period 1999–2010 (note that the study period differs from the period in our study).…”

Section: Discussioncontrasting

confidence: 55%

Seasonal patterns and spatial variation of Borrelia burgdorferi (sensu lato) infections in Ixodes ricinus in the Netherlands

et al. 2021

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Background The incidence of Lyme borreliosis varies over time and space through as yet incompletely understood mechanisms. In Europe, Lyme borreliosis is caused by infection with a Borrelia burgdorferi (s.l.) genospecies, which is primarily transmitted by a bite of Ixodes ricinus nymphs. The aim of this study was to investigate the spatial and temporal variation in nymphal infection prevalence of B. burgdorferi (s.l.) (NIP), density of questing nymphs (DON) and the resulting density of infected nymphs (DIN). Methods We investigated the infection rates in I. ricinus nymphs that were collected monthly between 2009 and 2016 in 12 locations in the Netherlands. Using generalized linear mixed models, we explored how the NIP, DON and DIN varied during the seasons, between years and between locations. We also determined the genospecies of the Borrelia infections and investigated whether the genospecies composition differed between locations. Results The overall NIP was 14.7%. A seasonal pattern in infection prevalence was observed, with higher estimated prevalences in the summer than in the spring and autumn. This, combined with higher nymphal densities in summer, resulted in a pronounced summer peak in the estimated DIN. Over the 7.5-year study period, a significant decrease in infection prevalence was found, as well as a significant increase in nymphal density. These two effects appear to cancel each other out; the density of infected nymphs, which is the product of NIP × DON, showed no significant trend over years. Mean infection prevalence (NIP, averaged over all years and all months) varied considerably between locations, ranging from 5 to 26%. Borrelia genospecies composition differed between locations: in some locations almost all infections consisted of B. afzelii, whereas other locations had more diverse genospecies compositions. Conclusion In the Netherlands, the summer peak in DIN is a result of peaks in both NIP and DON. No significant trend in DIN was observed over the years of the study, and variations in DIN between locations were mostly a result of the variation in DON. There were considerable differences in acarological risk between areas in terms of infection prevalence and densities of ticks as well as in Borrelia genospecies composition.

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Longitudinal study of prevalence and spatio‐temporal distribution of Borrelia burgdorferi sensu lato in ticks from three defined habitats in Latvia, 1999–2010

Cited by 17 publications

References 102 publications

Questing microbioticks : Interactions of microbes, ticks, vertebrates, and the environment

Questing microbioticks : Interactions of microbes, ticks, vertebrates, and the environment

Long-Term Study of Borrelia and Babesia Species Distribution in Ixodes Ricinus and Dermacentor Recticulatus Ticks Removed From Humans in Poland, 2016-2019

Seasonal patterns and spatial variation of Borrelia burgdorferi (sensu lato) infections in Ixodes ricinus in the Netherlands

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