Université de Neuchâtel

Borrelia burgdorferi in a focus of Lyme borreliosis: epizootiologic contribution of small mammals

Humair, Pierre-François ; Turrian, N ; Aeschlimann, André ; Gern, Lise

In: Folia Parasitologica, 1993, vol. 40, no. 1, p. 65-70

The contribution of woodmice (Apodemus sylvaticus), yellow-necked mice (Apodemus flavicollis) and bank voles (Clethrionomys glareolus) was compared in a focus of Lyme borreliosis in Switzerland during a 7 months' study. All three species of mice and one species of shrews (Sorex araneus) were shown parasitized by infected Ixodes ricinus immatures. About 14% of...

Université de Neuchâtel

Natural history of Borrelia burgdorferi sensu lato

Gern, Lise ; Humair, Pierre-François

In: Wiener klinische Wochenschrift, 1999, vol. 110, no. 24, p. 856-858

Lyme borreliosis is a zoonosis: its causative agent, B: burgdorferi, circulates between ticks and a large range of vertebrates. Identification of the hosts which are responsible for the infection of the vectors is extremely important to determine the potential risk of infection in an habitat. Various small mammals and bird species are considered reservoirs for the Lyme disease...

Université de Neuchâtel

Ixodes ricinus immatures on birds in a focus of Lyme borreliosis

Humair, Pierre-François ; Turrian N. ; Aeschlimann, André ; Gern, Lise

In: Folia Parasitologica, 1993, vol. 40, p. 237-242

The infestation of birds by immature Ixodes ricinus was studied during 6 months in a Swiss woodland, where Lyme borreliosis is endemic. Thirteen passerine species were found to be parasitized by /. ricinus subadults and specially Turdus merula, T, philomelos and Erithacus rubecula. Overall, 300 larvae and 162 nymphs were collected on 95 avian hosts. Prevalence of infestation of nymphs on birds...

Université de Neuchâtel

Relationship between Borrelia burgdorferi sensu lato species, red squirrels (Sciurus vulgaris) and Ixodes ricinus in enzootic areas in Switzerland

Humair, Pierre-François ; Gern, Lise

In: Acta Tropica, 1998, vol. 69, p. 213-227

The infection and reservoir status of red squirrels (Sciurus vulgaris) for Borrelia burgdorferi sensu lato were studied in Switzerland. B. burgdorferi sensu lato was isolated from 15 skin samples from 4/6 dead red squirrels, victims of road traffic. Isolates were identified using restriction fragment length polymorphism (RFLP): B. burgdorferi sensu stricto was present...

Université de Neuchâtel

Ecology of Borrelia burgdorferi sensu lato in Europe

Gern, Lise ; Humair, Pierre-François

In: Lyme Borreliosis: Biology, Epidemiology and Control, 2002, vol. 6, p. 149-174

Université de Neuchâtel

Prevalence of Borrelia burgdorferi Sensu Lato in Ticks Collected from Migratory Birds in Switzerland

Poupon, Marie-Angèle ; Lommano, Elena ; Humair, Pierre-François ; Douet, Véronique ; Rais, Olivier ; Schaad, Michael ; Jenni, Lukas ; Gern, Lise

In: Applied and Environmental Microbiology, 2006, vol. 72, p. 976-979

The prevalence of ticks infected by Borrelia burgdorferi sensu lato on birds during their migrations was studied in Switzerland. A total of 1,270 birds captured at two sites were examined for tick infestation. Ixodes ricinus was the dominant tick species. Prevalences of tick infestation were 6% and 18.2% for birds migrating northward and southward, respectively. Borrelia...