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'Pesticide-resistant mosquitoes a threat'

(UPDATE) TOKYO: Mosquitoes that transmit dengue and other viruses have evolved growing resistance to insecticides in parts of Asia, and novel ways to control them are desperately needed, new research warns.

Health authorities commonly fog mosquito-infested areas with clouds of insecticide, and resistance has long been a concern, but the scale of the problem was not well understood.

This handout photo taken on July 14, 2018 and received on January 6, 2023 courtesy of Shinji Kasai, the director of the Department of Medical Entomology at the National Institute of Infectious Diseases in Tokyo, shows an Aedes aegypti mosquito at their laboratory. AFP PHOTO / Courtesy of Shinji KASAI