Duplantier Jean-Marc, Sène M. (2000). Rodents as reservoir hosts in the transmission of Schistosoma mansoni in Richard-Toll, Senegal, West Africa. Journal of Helminthology, p. 129-135. ISSN 0022-149X.
Titre du document
Rodents as reservoir hosts in the transmission of Schistosoma mansoni in Richard-Toll, Senegal, West Africa
Année de publication
2000
Type de document
Article
Auteurs
Duplantier Jean-Marc, Sène M.
Source
Journal of Helminthology, 2000,
p. 129-135 ISSN 0022-149X
More than 2000 animals belonging to six different rodent species and one insectivore species were examined for infection with schistosomes in the region of Richard-Toll, Senegal. Two murid rodents, Arvicanthis niloticus and Mastomys huberti, were found infected with Schistosoma mansoni. Prevalences were about 5% for both rodent species with a mean worm burden of about 20 worms per host. The sex-ratios of S. mansoni worms were always biased towards males. Prevalences and worm burdens, although similar in both male and female rodents, increased significantly with age. The highest prevalences and worm burdens were found near habitations and decreased significantly with the distance from the town of Richard-Toll. Eggs were also observed in the liver and faeces of the two naturally infected rodent species. The results suggest that rodents participate in the transmission of intestinal schistosomiasis in Richard-Toll but the human population is the main source of infection. The genetic resemblance between human and murine isolates of S. mansoni suggests that further epidemiological studies are needed in this region of Senegal. (Résumé d'auteur)
Plan de classement
Ecologie des schistosomiases et de leurs hôtes [052SCHIST01]
Descripteurs
SCHISTOSOMIASE ; HOTE VERTEBRE ; INFECTION ; PREVALENCE ; SEX RATIO ; DISTRIBUTION SPATIALE ; ANIMAL RESERVOIR
