Prevalence and control of Schistosoma haematobium infections in the Amran subprovince of the Yemen Arab Republic.

803 schoolchildren in the subprovince of Amran were examined for S. haematobium. The prevalence was 28.9%. Stool samples of 92 children were negative for S. mansoni eggs. Bulinus snails were most frequent, whereas Biomphalaria were rare. Control measures included chemotherapy and mollusciciding. The prevalence in 8 selected villages could be reduced by this from 36.3% down to 5.1%. No gross haematuria and only one single case of heavy infection were detected. Eradication of this disease seems feasible.