Byron has been included in the growing list of locations in Contra Costa County, where mosquitoes tested positive for the West Nile virus in 2018, according to the Contra Costa Mosquito & Vector Control District.
So far this year 13 groups of mosquitoes, eight dead birds and 13 chickens from the area of Contra Costa County have been positive, the quarter reported on Friday in a press release.
Mosquitoes with West Nile were also found this year in Oakley, Martinez, Holland Tract, Discovery Bay, and Quimby Island. In Brentwood, Discovery Bay, Antioch and Concord dead birds were found, which tested positive for West Nile.
Since 2005, West Nile has been diagnosed in 63 Contra Costa County patients. In 2006, according to the district, two people died of the disease.
In addition to warning that people carry mosquito repellent and stay indoors when mosquitoes are active at dawn and dusk, officials remind the horse owners to get their animals vaccinated.
There have been more than 1
"This season typically marks the culmination of the West Nile virus season, and so it is very important that citizens prevent mosquito bites by repelling and horse owners should make sure that their horses had the recommended vaccinations to take the risk Decreasing equine cases of West Nile virus, said Steve Schultz, the district's science programs
Residents should also drain or drain stagnant water to prevent mosquitoes from laying eggs.
Dead birds should go under the state hotline A map of West Nile activities in Contra Costa County can be found on the District's website.
In Alameda County, 12 dead birds and 10 groups of mosquitoes have been reported positively.  Tested for the West Nile virus, said Erika Castillo, a spokeswoman for the Mosquito Abatement District Alameda district.
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