Subjects
- Schistosomiasis -- prevention & control[remove]8
- China3
- Health Education3
- Schistosomiasis -- transmission3
- Environmental Exposure -- prevention & control2
- Schistosoma2
- Schistosoma -- pathogenicity2
- Water -- parasitology2
- Egypt1
- Sanitation1
- Snails -- parasitology1
- Toilet Facilities1
- United States. Naval Medical Research Unit No. 31
