成人快手

Researchers have have found out that mosquito nets incorporating a chemical called piperonyl butoxide blocked mosquito resistance to standard insecticides. The new type of mosquito net increases protection against malaria-carrying insects, according to Dr Natacha Protopopoff who led a field trial of the mosquito net.

(Picture: A child sleeps under a mosquito net. Credit: Andrei Pungovschi/AFP/Getty Images)