No human cases of WNV have been confirmed in any Coastal Health District counties, including Clay and Glynn. For about 20 percent of those infected, though, symptoms can include fever, aches, vomiting, diarrhea or rash.
The agency encourages residents and visitors to take precautions to prevent mosquito-borne.
Mosquitoes that carry the West Nile virus are more likely to bite during the evening, night, and early morning. In about 1 percent of infections, West Nile virus can cause a severe illness affecting the central nervous system, such as encephalitis (inflammation of the brain) or meningitis (inflammation of the membranes that surround the brain and spinal cord).
However, across California in 2017, 600 people tested positive for the virus and 44 people died.
There are no vaccines against West Nile, KDHE says.
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Avoiding the outdoors when mosquitoes are present, typically dawn and dusk. Be sure to use insect repellent and wear long sleeves and trousers at these times, or consider staying indoors during these hours. Eliminate or reduce all sources of standing water where mosquitoes can lay eggs like wading pools, wheelbarrows, containers, rain downspouts and gutters, pet dishes and birdbaths and more.
The provincial mosquito surveillance program identified the infected mosquitoes in traps collected on July 10 in the Estevan area.
"One of the most important things people can do is to find and dump out any standing water they see inside and outside their homes so mosquitoes can't breed", said Elise Rothschild, director of the county Department of Environmental Health. Talk with your veterinarian about vaccinating your horse to protect them against WNV.
No people or birds have tested positive for West Nile virus in San Diego County this year.