What is the stance of the World Health Organization regarding the current necessity of DDT for public health?

The World Health Organization (WHO) recognizes that DDT, or dichlorodiphenyltrichloroethane, plays a crucial role in public health, particularly in controlling vector-borne diseases like malaria. The organization has endorsed the use of DDT as an insecticide for indoor residual spraying (IRS) in certain contexts where other alternatives may not be as effective or feasible. This stance is based on extensive evidence showing that DDT can significantly reduce mortality and morbidity associated with these diseases, especially in regions where malaria transmission is high.

WHO emphasizes that while DDT remains an important tool in public health, its use should be part of a comprehensive vector control strategy that includes other methods and insecticides. The organization also encourages judicious use to mitigate any potential health and environmental risks associated with DDT. Therefore, the choice indicating that the current stance of WHO supports the necessity of DDT in certain public health scenarios aligns with their recommendations and strategic approaches to disease control.