Lake County health officials said a batch of mosquitoes sampled June 24 at a Southlake Mosquito Abatement District trap in Highland Park tested positive for West Nile virus. Last year 154 of 723 m...

Most people infected with Jamestown Canyon virus do not become ill, or experience only mild illness. In rare cases, infections can become serious. The Health Department does not recommend avoiding the outdoors but urges precautions. Use appropriate repellant, wear protective clothing, and avoid areas with mosquito activity, when possible.

Stanislaus County Public Health said the person infected with the virus developed a neurological illness, known as neuroinvasive WNV.

A resident in their 70s became ill in early July, according to the Lake County Health Department, although the sex, location or condition of the person was not provided.