The mosquitoes that carry West Nile virus are most active at dawn and dusk and in the early evening. About one out of 150 infected people develop swelling of the brain or brain tissue, that in some cases, can result in death.
They're most active in the two-hour span before sunset and generally dusk and dawn.
County Vector Control officials said West Nile virus has been present in San Diego County since 2003. However, they do note, people who have been infected are considered immune.
But during that family BBQ or camping trip, the health authority said there are ways to prevent getting hit by the virus - wear clothing that covers as much skin as possible, avoid wearing cologne or perfume and use mosquito repellent containing DEET.
Use an EPA-registered mosquito repellent and apply according the manufacturer's instructions.
Officials also recommend wearing long sleeves and trousers as well as using repellent when outdoors.
WNV is transmitted by the bite of infected mosquitoes and can cause mild to serious illness.
Doors - Make sure doors and windows are in good repair and fit tightly, and fix torn or damaged screens to keep mosquitoes out of the house. 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.
Get rid of mosquito breeding sites by emptying standing water from flower pots, buckets and barrels. Although there have been no cases reported to the KDHE in 2018, there have been more than 600 cases of the most severe form of WNV and 30 deaths in Kansas from 1999-2017. The District asks residents who find a dead bird to report it to the statewide West Nile Virus Hotline online or by calling (877) WNV-BIRD (968-2473).