What is the efficacy of enhanced community intervention for reducing the incidence of schistosomiasis (bilharzia)?

Updated: Jun 11, 2020
  • Author: Shadab Hussain Ahmed, MD, AAHIVS, FACP, FIDSA; Chief Editor: Michael Stuart Bronze, MD  more...
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A controlled study of enhanced community intervention performed in rural Chinese villages demonstrated significant improvements in human, snail, and wild mouse schistosomiasis infection rates. Along with the preexisting programs for the annual treatment of farmers and cattle, efforts were made to optimize animal grazing sites, sewage management, drinking water supplies, and health education with regard to schistosomiasis. [27, 28]

According to the WHO, the global distribution of schistosomiasis has changed in that it has been eradicated from Japan and the Lesser Antilles islands; transmission has been stopped in Tunisia; and transmission is very low in Morocco, Saudi Arabia, Venezuela, and Puerto Rico.

Nevertheless, the human cost of schistosomal infections remains high, and the disease contributes to comorbidity with other infections, including hepatitis, human immunodeficiency virus (HIV), and malaria, in endemic regions. [29]

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