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Determination of zones at risk for fasciolosis in the department of Haute-Vienne, central France: a retrospective study on natural infections detected in 108,481 Galba truncatula for 37 years.
- Source :
-
Parasite (Paris, France) [Parasite] 2017; Vol. 24, pp. 55. Date of Electronic Publication: 2017 Dec 22. - Publication Year :
- 2017
-
Abstract
- A retrospective study on the natural infection of Galba truncatula by Fasciola hepatica was carried out in the French department of Haute-Vienne to determine whether there are areas at risk for fasciolosis. Adult snails included in this analysis came from samples collected from pastures on 259 farms and from 121 wild watercress beds between 1970 and 2006. Fasciola hepatica infection rates were examined in relation to altitude and climatic data (mean annual rainfall, mean annual temperature) of each municipality. In a total of 108,481 snails collected in 151 municipalities, the overall prevalence of infection was 3.8% but varied according to the municipalities from which samples were taken (from 1% to 7.4%). The prevalence of F. hepatica infection in snails significantly decreased when the mean altitude of municipalities or their mean annual rainfall increased. However, this prevalence significantly increased with increasing mean annual temperatures. Studying the prevalence of infection in these snails makes it possible to delineate zones at risk for fasciolosis on the acid soils of Haute-Vienne. The risk of infection for livestock would be greater in areas of Haute-Vienne below 400 m above sea level and would gradually decrease when the altitude of the land increases.<br /> (© P. Vignoles et al., published by EDP Sciences, 2017.)
- Subjects :
- Altitude
Animals
Cattle
Disease Vectors
Farms
Fasciola hepatica anatomy & histology
Fasciola hepatica physiology
Fascioliasis epidemiology
France epidemiology
Nasturtium
Prevalence
Rain
Retrospective Studies
Risk Factors
Sheep
Temperature
Fasciola hepatica isolation & purification
Fascioliasis transmission
Lymnaea parasitology
Subjects
Details
- Language :
- English
- ISSN :
- 1776-1042
- Volume :
- 24
- Database :
- MEDLINE
- Journal :
- Parasite (Paris, France)
- Publication Type :
- Academic Journal
- Accession number :
- 29272249
- Full Text :
- https://doi.org/10.1051/parasite/2017055