Phytoecological Mapping of Ixodes Ricinus as an Approach to the Distribution of Lyme Borreliosis in France

1994 ◽  
pp. 105-112 ◽  
Author(s):  
B. Gilot ◽  
C. Guiguen ◽  
B. Degeilh ◽  
B. Doche ◽  
J. Pichot ◽  
...  
Keyword(s):  
Lyme Borreliosis ◽  
Ixodes Ricinus

Host races in Ixodes ricinus, the European vector of Lyme borreliosis

2011 ◽  
Vol 11 (8) ◽  
pp. 2043-2048 ◽  
Author(s):  
Florent Kempf ◽  
Thierry De Meeûs ◽  
Elise Vaumourin ◽  
Valérie Noel ◽  
Veronika Taragel’ová ◽  
...  
Keyword(s):  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Host Races

scholarly journals Species Co-Occurrence Patterns among Lyme Borreliosis Pathogens in the Tick Vector Ixodes ricinus

2013 ◽  
Vol 79 (23) ◽  
pp. 7273-7280 ◽  
Author(s):  
Coralie Herrmann ◽  
Lise Gern ◽  
Maarten J. Voordouw
Keyword(s):  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Vertebrate Host ◽  
Mixed Infections ◽  
Data Set ◽  
Content Type ◽  
Tick Vector ◽  
Pairwise Interactions ◽  
Spirochete Load ◽  
Reservoir Hosts

ABSTRACTMixed infections have important consequences for the ecology and evolution of host-parasite interactions. In vector-borne diseases, interactions between pathogens occur in both the vertebrate host and the arthropod vector. Spirochete bacteria belonging to theBorrelia burgdorferisensu latogenospecies complex are transmitted byIxodesticks and cause Lyme borreliosis in humans. In Europe, there is a high diversity ofBorreliapathogens, and the main tick vector,Ixodes ricinus, is often infected with multipleBorreliagenospecies. In the present study, we characterized the pairwise interactions between fiveB. burgdorferisensu latogenospecies in a large data set ofI. ricinusticks collected from the same field site in Switzerland. We measured two types of pairwise interactions: (i) co-occurrence, whether double infections occurred more or less often than expected, and (ii) spirochete load additivity, whether the total spirochete load in double infections was greater or less than the sum of the single infections. Mixed infections ofBorreliagenospecies specialized on different vertebrate reservoir hosts occurred less frequently than expected (negative co-occurrence) and had joint spirochete loads that were lower than the additive expectation (inhibition). In contrast, mixed infections of genospecies that share the same reservoir hosts were more common than expected (positive co-occurrence) and had joint spirochete loads that were similar to or greater than the additive expectation (facilitation). Our study suggests that the vertebrate host plays an important role in structuring the community ofB. burgdorferisensu latogenospecies inside the tick vector.

Wahlund effects and sex-biased dispersal in Ixodes ricinus, the European vector of Lyme borreliosis: New tools for old data

2010 ◽  
Vol 10 (7) ◽  
pp. 989-997 ◽  
Author(s):  
Florent Kempf ◽  
Karen D. McCoy ◽  
Thierry De Meeûs
Keyword(s):  
Lyme Borreliosis ◽  
Ixodes Ricinus

scholarly journals Comparison in the immunological properties ofBorrelia burgdorferiisolates fromIxodes ricinusderived from three endemic areas in Switzerland

1994 ◽  
Vol 112 (3) ◽  
pp. 533-542 ◽  
Author(s):  
C. M. Hu ◽  
S. Leuba-Garcia ◽  
M. D. Kramer ◽  
A. Aeschlimann ◽  
L. Gern
Keyword(s):  
Monoclonal Antibody ◽  
Borrelia Burgdorferi ◽  
Lyme Borreliosis ◽  
Ixodes Ricinus ◽  
Outer Surface ◽  
Surface Proteins ◽  
Immunological Properties ◽  
Outer Surface Proteins ◽  
Sds Page ◽  
Further Development

SUMMARYBorrelia burgdorferiisolates were obtained fromIxodes ricinusfrom three sites in Switzerland. They were examined by SDS-PAGE and immunoblotting. The phenotypes, in respect of three outer surface proteins (Osp), differed between the sites of collection. In site 1, most isolates had an OspA of 31 kDa and an OspB of 34 kDa: in site 2, isolates presenting an OspA of 33 kDa dominated and in site 3, the isolates with an OspA of 32 kDa and an OspB of 35 kDa were most frequent. This distribution differed significantly. About half of the isolates from sites 1 and 3 reacted with anti-OspA monoclonal antibody H5332 compared to 29% from site 2. Site 1 isolates reacted significantly more frequently (81 %) with another anti-OspA monoclonal antibody LA-31 than isolates from site 3 (P< 0·0001). These findings have implications for the epidemiology of Lyme borreliosis, for the further development of serodiagnostic reagents and for the development of a vaccine.

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