West Nile Virus becomes more of a concern between the months of March and the end of November.
Statewide last week, almost 300 mosquitoes caught in traps tested positive for West Nile Virus.
Aaron Devenczi with the San Joaquin County Mosquito Control District says the numbers are up especially in Sacramento and San Joaquin Counties.
“What we’re finding is this is one of the highest years of West Nile Virus activity and the mosquitoes we collected and are testing since West Nile Virus arrived here in 2004.”
So far California has not reported any human cases of West Nile Virus. However, last year 53 deaths were blamed on the disease, the highest total so far since 2004.