ROCK FALLS – Some mosquitoes in Rock Falls have tested positive for West Nile Virus, the Whiteside County Health Department announced Friday.
While testing a pool in Rock Falls this week, the health department determined that the Culex mosquitoes present were carrying the virus.
On Aug. 22, the health department announced a pool of mosquitoes in Morrison also was carrying the virus.
The Culex mosquito is a “dusk-to-dawn biter,” the health department said in a news release. Health officials recommend wearing protective clothing after dark and using a repellent that contains DEET.
They also recommend that residents eliminate any sources of standing water, where mosquitoes are known to breed.
Common symptoms of infection include fever, nausea, headache and muscle aches and can last from a few days to a few weeks.