Schistosomiasis in Senegal
Palabras clave
Abstracto
Descripción
We propose two types of manipulations. Bottom-up manipulations will affect snail resources, whereas top-down manipulations will affect snail predators. For the bottom-up manipulations, we will clear shistosoma infections in school children, then remove the primary habitat for snails, the submerged macrophyte Ceratophyllum demersum (with proper unmanipulated controls), compost it, apply it to crops, and then quantify reinfection rates and crop yields. The second bottom-up manipulation will be to clear shistosoma infections in school children, apply three agrochemical treatments (status quo control, shift to lower risk herbicides, or eliminate herbicides and fertilizers), and then quantify reinfection rates and crop yields. Farmers will be compensated for any loss in yields. For the top-down manipulations, every village will receive prawns that depredate snails. We will clear shistosoma infections in school children, apply three agrochemical treatments (status quo control, shift to lower risk insecticides that don't kill prawns, or eliminate insecticides), and then quantify reinfection rates and crop yields. Farmers will be compensated for any loss in yields.
fechas
Verificado por última vez: | 04/30/2020 |
Primero enviado: | 06/11/2017 |
Inscripción estimada enviada: | 06/11/2017 |
Publicado por primera vez: | 06/13/2017 |
Última actualización enviada: | 05/10/2020 |
Última actualización publicada: | 05/12/2020 |
Fecha de inicio real del estudio: | 01/01/2017 |
Fecha estimada de finalización primaria: | 05/31/2021 |
Fecha estimada de finalización del estudio: | 05/31/2021 |
Condición o enfermedad
Intervención / tratamiento
Other: Bottom-up intervention
Fase
Grupos de brazos
Brazo | Intervención / tratamiento |
---|---|
No Intervention: Status quo Status quo pesticide use | |
Active Comparator: Low risk Villages shifted to low risk pesticides that don't kill prawns | |
Experimental: No agrochemcials Villages that eliminate agrochemicals |
Criterio de elegibilidad
Edades elegibles para estudiar | 5 Years A 5 Years |
Sexos elegibles para estudiar | All |
Acepta voluntarios saludables | si |
Criterios | Inclusion Criteria: - School age children Exclusion Criteria: - Non-school age children |
Salir
Medidas de resultado primarias
1. Schistosomiasis reinfection rate [One year]
Medidas de resultado secundarias
1. Crop yields [One year]