(NYT) – The malaria-carrying mosquito is resistant to all insecticides. Scientists are scrambling to find ways to blunt the risk.

An invasive, malaria-carrying, insecticide-resistant mosquito that thrives in cities, where malaria has not been a major threat, has moved farther and faster across Africa than even pessimistic scientists had feared. And many public health experts believe it is too late to eliminate, or even contain, it.

A new genomic analysis of the mosquito, called Anopheles stephensi, using specimens collected from 10 countries, showed that those found in Africa had genetic resistance to all of the chemicals currently used in spraying campaigns and other mosquito-control efforts, meaning those insecticides will not kill it. (Read More)