[Ecology of intestinal schistosomiasis in Guadeloupe. Epidemiological analysis and data for a model study (author's transl)].
In Guadeloupe, during a general survey on intestinal schistosomiasis, the authors made a structural analysis of a limited focus of infection. The focus is formed by a river basin on the Carribean coast of Basse-Terre island. Sampling of the various elements of the parasitic cycle was done in spatial units defined by ecological and epidemiological criteria. The study of corresponding populations shows that: -- inside the twelve delimited sectors, only two include both hosts and parasites. They are zones with ditches and small temporary streams; -- the vector (Biomphalaria glabrata) density is always high in inhabited sectors; -- the rat, although present over the whole river basin, is only parasitized near inhabited places; -- fluorescent antibody level is an excellent indicator of the level of infection of human populations. Its variation can be detected in a time interval of less than one year; -- distance from contaminated water is one of the principal risk factors. A mathematical expression for this is given.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D001700:Biomphalaria / Q000469:parasitology; D002648:Child; D002675:Child, Preschool; D004463:Ecology; D005260:Female; D006801:Humans; D007223:Infant; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D011156:Population Density; D051381:Rats / Q000469:parasitology; D012552:Schistosomiasis / Q000453:epidemiology*; D014900:West Indies
Ecologie de la schistosomose intestinale en Guadeloupe. Analyse du système épidémiologique. Documents pour un essai de modélisation.