ST. LOUIS (KTVI) - You've most likely heard of west Nile, but what about Chikungunya?
Both are mosquito borne illnesses. Chikungunya is spread by daytime mosquitoes, while West Nile is spread by mosquitoes that feed at night.
Heavy rains followed by hot weather are causing the mosquito population in our area to flourish.
"Chikungunya is a viral illness that makes the individual who gets it feel contorted. It makes them feel there is a lot of joint pain. There can be some fever. There can be a rash associated with it, but it basically makes you feel completely run down.
St. Louis County already has two reported cases of the virus.
Signs and symptoms for both West Nile and Chikungunya are similar: headaches, muscle pain, and possibly a rash.
Chikungunya cannot be transferred from person to person.
The county's vector control program is hoping the public will help with this year's fight.