scholarly journals Habitat-Specific Diversity of Borrelia burgdorferi Sensu Lato in Europe, Exemplified by Data from Latvia

2003 ◽  
Vol 69 (5) ◽  
pp. 3008-3010 ◽  
Author(s):  
Susanne Etti ◽  
Rosie Hails ◽  
Stefanie M. Schäfer ◽  
Simona De Michelis ◽  
Henna-Sisko Sewell ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Significant Variation ◽  
Host Community ◽  
Borrelia Burgdorferi Sensu Lato

ABSTRACT The distribution of Borrelia burgdorferi sensu lato genospecies in questing Ixodes ricinus ticks from ecologically distinct habitats in Latvia was analyzed. A significant variation in the frequency of the genospecies across sites was observed, pointing to the importance of the host community in the ecology of Lyme borreliosis.

scholarly journals Prevalence of Borrelia burgdorferi Sensu Lato and Anaplasmataceae Members in Ixodes ricinus Ticks in Alsace, a Focus of Lyme Borreliosis Endemicity in France

2006 ◽  
Vol 72 (4) ◽  
pp. 3074-3078 ◽  
Author(s):  
Elisabeth Ferquel ◽  
Martine Garnier ◽  
Jérôme Marie ◽  
Claire Bernède-Bauduin ◽  
Guy Baranton ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Disease Incidence ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Borrelia Garinii ◽  
Peak Density ◽  
Tick Infection ◽  
Ixodes Ricinus Ticks ◽  
Northeastern France

ABSTRACT Due to the high Lyme borreliosis incidence in Alsace, in northeastern France, we investigated in 2003-2004 three cantons in this region in order to determine the density of Ixodes ricinus ticks infected by Borrelia burgdorferi sensu lato and Anaplasmataceae. The peak density of nymphs infected by B. burgdorferi sensu lato at Munster and Guebwiller, where the disease incidence was high, was among the highest reported in Europe (105 and 114 per 100 m2, respectively). In contrast, the peak density of infected nymphs was low in the canton of Dannemarie (5/100 m2), where the disease incidence was low. The two main species detected in ticks were Borrelia afzelii, more frequent in nymphs, and Borrelia garinii, more frequent in adult ticks. The rates of tick infection by Anaplasma phagocytophilum were 0.4% and 1.2% in nymphs and adults, respectively.

scholarly journals Borrelia miyamotoi: egy újabb, humán patogén, kullancs által terjesztett, visszatérő lázat okozó baktérium

2017 ◽  
Vol 158 (29) ◽  
pp. 1124-1130
Author(s):  
Sándor Szekeres ◽  
András Lakos ◽  
Gábor Földvári
Keyword(s):  
Literature Review ◽  
Borrelia Burgdorferi ◽  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Common Symptom ◽  
Borrelia Miyamotoi ◽  
Immunocompromised Patients ◽  
Emerging Pathogen ◽  
Number Of Patients

Abstract: Borrelia miyamotoi is a recently described relapsing fever spirochete transmitted by ticks of the Ixodes ricinus complex. This pathogen is different from Borrelia burgdorferi sensu lato (the Lyme borreliosis spirochetes) in its epidemiology, ecology and also genetics. Over 50 patients have been described worldwide with Borrelia miyamotoi disease, and three immunocompromised patients were reported with neurological symptoms. Our knowledge about Borrelia miyamotoi infection in ticks and its distribution in different habitats and also the mechanism of the infection is limited. The most common symptom is fever; thus it can be easily confused with other tick-borne diseases. Due to the intensive research in recent years, Borrelia miyamotoi infection in ticks and hosts has been reported from different regions and also the number of patients is increasing, thus this bacterium is considered as an emerging pathogen. In this literature review we would like to summarize the available knowledge about this spirochete. Orv Hetil. 2017, 158(29): 1124–1130.

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

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Nienke Hartemink ◽  
Arnold J. H. van Vliet ◽  
Gerrit Gort ◽  
Fedor Gassner ◽  
Frans Jacobs ◽  
...  
Keyword(s):  
The Netherlands ◽  
Borrelia Burgdorferi ◽  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Seasonal Pattern ◽  
Significant Trend ◽  
Spatial And Temporal Variation ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Infection Prevalence ◽  
Summer Peak

Abstract 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.

scholarly journals Europe-Wide Meta-Analysis of Borrelia burgdorferi Sensu Lato Prevalence in Questing Ixodes ricinus Ticks

2017 ◽  
Vol 83 (15) ◽  
Author(s):  
Martin Strnad ◽  
Václav Hönig ◽  
Daniel Růžek ◽  
Libor Grubhoffer ◽  
Ryan O. M. Rego
Keyword(s):  
North America ◽  
Borrelia Burgdorferi ◽  
Infection Rate ◽  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Health Concern ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Published Data ◽  
Prevalence Rates ◽  
Content Type

ABSTRACT Lyme borreliosis is the most common zoonotic disease transmitted by ticks in Europe and North America. Despite having multiple tick vectors, the causative agent, Borrelia burgdorferi sensu lato, is vectored mainly by Ixodes ricinus in Europe. In the present study, we aimed to review and summarize the existing data published from 2010 to 2016 concerning the prevalence of B. burgdorferi sensu lato spirochetes in questing I. ricinus ticks. The primary focus was to evaluate the infection rate of these bacteria in ticks, accounting for tick stage, adult tick gender, region, and detection method, as well as to investigate any changes in prevalence over time. The data obtained were compared to the findings of a previous metastudy. The literature search identified data from 23 countries, with 115,028 ticks, in total, inspected for infection with B. burgdorferi sensu lato. We showed that the infection rate was significantly higher in adults than in nymphs and in females than in males. We found significant differences between European regions, with the highest infection rates in Central Europe. The most common genospecies were B. afzelii and B. garinii, despite a negative correlation of their prevalence rates. No statistically significant differences were found among the prevalence rates determined by conventional PCR, nested PCR, and real-time PCR. IMPORTANCE Borrelia burgdorferi sensu lato is a pathogenic bacterium whose clinical manifestations are associated with Lyme borreliosis. This vector-borne disease is a major public health concern in Europe and North America and may lead to severe arthritic, cardiovascular, and neurological complications if left untreated. Although pathogen prevalence is considered an important predictor of infection risk, solitary isolated data have only limited value. Here we provide summarized information about the prevalence of B. burgdorferi sensu lato spirochetes among host-seeking Ixodes ricinus ticks, the principal tick vector of borreliae in Europe. We compare the new results with previously published data in order to evaluate any changing trends in tick infection.

scholarly journals Borrelia burgdorferi sensu lato in Ixodes ricinus ticks from Norway: evaluation of a PCR test targeting the chromosomal flaB gene

2012 ◽  
Vol 58 (4) ◽  
pp. 431-439 ◽  
Author(s):  
Andrew Jenkins ◽  
Dag Hvidsten ◽  
Andreas Matussek ◽  
Per-Eric Lindgren ◽  
Snorre Stuen ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Ixodes Ricinus ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Ixodes Ricinus Ticks ◽  
Flab Gene ◽  
Pcr Test

scholarly journals Questing Ixodes ricinus ticks (Acari, Ixodidae) as a vector of Borrelia burgdorferi sensu lato and Borrelia miyamotoi in an urban area of north-eastern Poland

2019 ◽  
Vol 78 (1) ◽  
pp. 113-126 ◽  
Author(s):  
Katarzyna Kubiak ◽  
Janina Dziekońska-Rynko ◽  
Hanna Szymańska ◽  
Dariusz Kubiak ◽  
Małgorzata Dmitryjuk ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Urban Area ◽  
Ixodes Ricinus ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Borrelia Miyamotoi ◽  
North Eastern ◽  
Ixodes Ricinus Ticks
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