RESUMEN
We studied the number of mollusks collected according to a specific protocol: 2 samplers prospecting in opposite directions for 1 min 30 s at 10 collection points regularly distributed on the site, for a total of 2 times 15 minutes. Because of the good reproducibility of the results of these collections, this method can be used for quantitative studies. A sampling effect was noted.
Asunto(s)
Moluscos/parasitología , Schistosoma/aislamiento & purificación , Animales , Ríos , SenegalRESUMEN
BACKGROUND: We studied the incidence of tuberculosis in the health district of Saint-Louis, Senegal over a period of 4years (2008-2011). One thousand three hundred and eighty-six cases were identified, producing an annual standardized incidence ratio of 129 cases per 100,000 inhabitants. RESULTS: Men in the 15-24-year old age group were more likely to be affected, and diagnosis was more common in the second half of the year. Treatment compliance was excellent (96%), and the cure rate of patients with a TB-positive microscopic examination was 95%. The overall treatment failure rate was 1% and the 6-month morality was 2%. Seropositivity, measured in volunteer patients (48%) was 3%. CONCLUSION: A spatial and temporal map of tuberculosis in the city of Saint-Louis, Senegal has been established. A cluster appears to be very likely in Guet Ndar, a particularly dense population zone in a fishing area. There is also a possible secondary cluster at Pikine.
Asunto(s)
Ciudades/epidemiología , Tuberculosis Pulmonar/epidemiología , Adolescente , Adulto , Niño , Preescolar , Femenino , Humanos , Incidencia , Masculino , Recurrencia , Inducción de Remisión , Senegal/epidemiología , Agrupamiento Espacio-Temporal , Análisis Espacio-Temporal , Adulto JovenRESUMEN
The authors have made an estimate of the number of mollusc by the capture-mark-recapture method at two sites in the Valley of the Senegal River. This quantification is necessary to track the effect of the introduction in one of the sites of a native shrimp Machrobrachium vollenhovenii, predator of mollusc. The populations of two study sites were approximately 1,800 and 1,500 individuals with coefficients of variation of about 30%.