Health officials are warning the public and offering tips after a batch of mosquitoes tested positive for West Nile virus for ...

Local health agencies have already found virus-positive mosquitoes in Sacramento, Kern, Tulare, and Santa Clara counties, according to the California West Nile Virus program. No human cases have been ...

Culex Pipiens mosquitos collected by the Sacramento-Yolo Mosquito & Vector Control District at Seymour Park in Sacramento’s Pocket neighborhood wait to be tested on July 19, 2018. Hector Amezcua ...

Culex Pipiens mosquitos collected by the Sacramento-Yolo Mosquito & Vector Control District at Seymour Park in Sacramento’s Pocket neighborhood wait to be tested on July 19, 2018. Hector Amezcua ...

Calgary researchers are using 'citizen science' to help determine how an invasive species of mosquito, which is a carrier of the West Nile virus, can survive Alberta's winter.

Out in the Great Salt Lake’s wetlands District employees keep their eyes on about 40,000 acres of wetlands and farmlands fed by mountain snowmelt via the Jordan River. The land is a patchwork of ...

Culex pipiens, the common house mosquito, has been found to carry and transmit the Usutu virus, originally discovered in the 1950s in Africa and present in Europe for the past three decades.