Urban mosquito sparks malaria surge in East Africa

FILE - Ruth Kavere, 65, demonstrates how to use a mosquito net with her granddaughter Faith, 3, in Mukuli, Kenya, on March 7, 2023. Bed nets are less effective against an invasive urban mosquito that is thriving in East Africa and bites earlier in the evening.

The spread of a mosquito in East Africa that thrives in urban areas and is immune to insecticide is fueling a surge in malaria that could reverse decades of progress against the disease, experts say.