Animals,Conservation of Natural Resources,Ecosystem,Environmental Monitoring,Ghana,Insect Vectors,Larva,Onchocerciasis,Research Support,Non-U.S. Gov't,Seasons,Simuliidae,Togo,Animals,Conservation of Natural Resources,Ecosystem,Environmental Monitoring,Ghana,Insect Vectors,Larva,Onchocerciasis,transmission,Research Support,Non-U.S. Gov't,Seasons,Simuliidae,isolation & purification,Togo