Seasonal transmission of Fasciola hepatica in cattle and Lymnaea (Fossaria) humilis snails in central Mexico
Por:
Cruz-Mendoza I., Ibarra-Velarde F., Quintero-Martínez M.T., Naranjo-García E., Lecumberri-López J., Correa D.
Publicada:
1 ene 2005
Resumen:
A 19-month study on the prevalence of fasciolosis in 30 naturally infected cows, the presence of infected and non-infected Lymnaea (Fossaria) humilis snails, and variation in soil temperature and humidity is reported. The prevalence of fasciolosis in cattle declined from around 50% in March to 30% in July, then, it increased from August, reaching a plateau of 100% in November-January, before gradually declining thereafter. A rise in soil humidity and temperature in June and July, respectively, which peaked between August and November was observed. In July, L. (F.) humilis snails appeared, but the infection could only be found in these in August and November. The number of infected snails did not reflect the infestation rate in cows, even though the infestation kinetics in both hosts behaved as predicted from the life cycle of the parasite. © Springer-Verlag 2005.
Filiaciones:
Cruz-Mendoza I.:
Depto. de Parasitología, FMVZ-UNAM, Cd. Universitaria, 04510, Mexico City, Mexico
Ibarra-Velarde F.:
Depto. de Parasitología, FMVZ-UNAM, Cd. Universitaria, 04510, Mexico City, Mexico
Quintero-Martínez M.T.:
Depto. de Parasitología, FMVZ-UNAM, Cd. Universitaria, 04510, Mexico City, Mexico
Naranjo-García E.:
Depto. de Zoología, Instituto de Biología, Cd. Universitaria, 04510, Mexico City, Mexico
Lecumberri-López J.:
Depto. de Genet. Y Bioestadistica, FMVZ-UNAM, Cd. Universitaria, 04510, Mexico City, Mexico
Correa D.:
Depto. de Parasitología, FMVZ-UNAM, Cd. Universitaria, 04510, Mexico City, Mexico
Medicina Experimental, Inst. Nacional de Pediatría, S.S.A., Mexico City, Mexico
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