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Younsi, Hend; Postić, D.; Baranton, Guy; Bouattour, Ali

doi:10.1023/a:1010928731281

Cited by 54 publications

(22 citation statements)

References 16 publications

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“…probe [15]. Initially, this genospecies was classified as non-pathogenic for humans because this species was not detected in humans but only found in animal hosts [83,84]. However, serious symptoms of Lyme borreliosis were induced in mice infected by B. lusitaniae [85], and recently the first isolate of this genospecies was found in a woman suffering from chronic skin lesions in Portugal [28].…”

Section: Discussionmentioning

confidence: 99%

“…Thus, B. lusitaniae represents a new Borrelia genospecies with a new risk for visitors of the Siebengebirge to be infected with Lyme disease. B. lusitaniae was frequently present in ticks from Mediterranean countries such as Portugal (first record), Tunisia and Morocco [84,86,87]. It was also found in the Czech Republic, Poland, Slovakia, Moldavia, Ukraine, Spain, France, Switzerland and South Germany [36,75,83,88-91].…”

Section: Discussionmentioning

confidence: 99%

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Abundance of Ixodes ricinus and prevalence of Borrelia burgdorferi s.l. in the nature reserve Siebengebirge, Germany, in comparison to three former studies from 1978 onwards

et al. 2012

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BackgroundDuring the last decades, population densities of Ixodes ricinus and prevalences of Borrelia burgdorferi s.l. have increased in different regions in Europe. In the present study, we determined tick abundance and the prevalence of different Borrelia genospecies in ticks from three sites in the Siebengebirge, Germany, which were already examined in the years 1987, 1989, 2001 and 2003. Data from all investigations were compared.MethodsIn 2007 and 2008, host-seeking I. ricinus were collected by monthly blanket dragging at three distinct vegetation sites in the Siebengebirge, a nature reserve and a well visited local recreation area near Bonn, Germany. In both years, 702 ticks were tested for B. burgdorferi s.l. DNA by nested PCR, and 249 tick samples positive for Borrelia were further genotyped by reverse line blotting.ResultsA total of 1046 and 1591 I. ricinus were collected in 2007 and 2008, respectively. In comparison to previous studies at these sites, the densities at all sites increased from 1987/89 and/or from 2003 until 2008. Tick densities and Borrelia prevalences in 2007 and 2008, respectively, were not correlated for all sites and both years. Overall, Borrelia prevalence of all ticks decreased significantly from 2007 (19.5%) to 2008 (16.5%), thus reaching the same level as in 2001 two times higher than in 1987/89 (7.6%). Since 2001, single infections with a Borrelia genospecies predominated in all collections, but the number of multiple infections increased, and in 2007, for the first time, triple Borrelia infections occurred. Prevalences of Borrelia genospecies differed considerably between the three sites, but B. garinii or B. afzelii were always the most dominant genospecies. B. lusitaniae was detected for the first time in the Siebengebirge, also in co-infections with B. garinii or B. valaisiana.ConclusionsOver the last two centuries tick densities have changed in the Siebengebirge at sites that remained unchanged by human activity since they belong to a nature reserve. Abiotic and biotic conditions most likely favored the host-seeking activity of I. ricinus and the increase of multiple Borrelia infections in ticks. These changes have led to a potential higher risk of humans and animals to be infected with Lyme borreliosis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Abundance of Ixodes ricinus and prevalence of Borrelia burgdorferi s.l. in the nature reserve Siebengebirge, Germany, in comparison to three former studies from 1978 onwards

et al. 2012

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“…complex ( 13 , 34 ). In the rest of the Europe, it has been isolated or detected less frequently, with low prevalence in ticks ( 30 , 35 , 36 ).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, Psammodromus algirus, the most abundant lizard species in North Tunisia, was found to be the primary host for immature stages of I. ricinus. Thus, it could play a role in the circulation of borreliae ( 13 ). B. burgdorferi s.s., B. andersonii, and B. bisettii were detected in the blood of 9 lizard species in the southeastern United States ( 14 ).…”

mentioning

confidence: 99%

Borrelia lusitaniaeand Green Lizards (Lacerta viridis), Karst Region, Slovakia

Majláthová¹,

Majláth²,

Derdáková³

et al. 2006

Emerg. Infect. Dis.

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“…data). Although this genospecies may more frequently infect ticks in the Mediterranean basin (Portugal [ 18 ], Spain [ 19 ], and Tunisia [ 20 ]), it has been detected in ticks as far east as Slovakia ( 21 ), Moldovia, the Czech Republic, and Ukraine ( 22 ). The prevalence of B. lusitaniae in our Lembach site corresponds more to that in southern than in eastern Europe.…”

Section: Discussionmentioning

confidence: 99%

Relapsing Fever–Like Spirochetes Infecting European Vector Tick of Lyme Disease Agent

Richter

Schlee

Matuschka

2003

Emerg. Infect. Dis.

130

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To determine whether relapsing fever–like spirochetes associated with hard ticks may infect Ixodes ricinus ticks in central Europe, we screened questing ticks for 16S rDNA similar to that of Asian and American relapsing fever–like spirochetes. We compared the prevalence of these spirochetes to that of Lyme disease spirochetes transmitted by the same vector. Relapsing fever-like spirochetes infect 3.5% of questing vector ticks in our three central European sites near the Rhein Valley. These spirochetes differ genetically from their American and Asian analogs while being relatively homogeneous in the region we sampled. The Lyme disease genospecies most commonly detected in central Europe are distributed broadly, whereas those that are less frequently found appear to be place-specific. The absence of co-infected ticks suggests that relapsing fever–like and Lyme disease spirochetes may not share hosts. Exposure risk for relapsing fever–like spirochetes is similar to that of certain Lyme disease genospecies. Although many persons may be bitten by ticks infected by relapsing fever–like spirochetes, health implications remain unknown.

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Cited by 54 publications

References 16 publications

Abundance of Ixodes ricinus and prevalence of Borrelia burgdorferi s.l. in the nature reserve Siebengebirge, Germany, in comparison to three former studies from 1978 onwards

Abundance of Ixodes ricinus and prevalence of Borrelia burgdorferi s.l. in the nature reserve Siebengebirge, Germany, in comparison to three former studies from 1978 onwards

Borrelia lusitaniaeand Green Lizards (Lacerta viridis), Karst Region, Slovakia

Relapsing Fever–Like Spirochetes Infecting European Vector Tick of Lyme Disease Agent

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