But Surya K Sharma says there was no significant increase in the population of the other malaria vector. Also, the researchers did not come across any other vector borne disease that could be linked to the dam. “The study states its limitations that all dams will not exhibit this feature as a number of factors play a role in reducing malaria. In this instance, getting rid of the vector brought down the cases,” says Priyanie Amerasinghe of International Water Management Institute, Hyderabad.

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Source: http://www.downtoearth.org.in/full6.asp?foldername