West Nile raises concerns in Mid-South

Memphis and Shelby County Vector Control units hit the streets Monday to spray areas with high levels of mosquitoes infected with West Nile Virus. Health officials reported three new human cases of the disease today. Authorities say even though we are at the end of summer, mosquito season is not over yet and now is the time to let your guard down.

"Anytime we see a lot of mosquitoes that can spread disease or a lot of infected mosquitoes then we take that as a signal to spray," says Health Department epidemiologist Jennifer Ward.

Infected mosquitoes have been around since May, but human cases are just now popping up.

" We're now at point in time that there's enough of it out there that it's spilling over into the human population," Ward said.

Spraying will help reduce the mosquito population and therefore reduce your chances of getting sick, but health department officials say it's also up to you to protect yourself.

That means getting rid of standing water, wearing long sleeves and pants and using a repellent with DEET.