West Nile

The LaSalle County Health Department reported on Friday that they received confirmation that mosquitoes from Peru tested positive for West Nile Virus.

Officials say the mosquitoes were collected on Thursday. This is the first documented West Nile Virus activity in LaSalle County this year.

As WSPY has previously reported,  the Illinois Department of Public Health announced in May that the first mosquitoes to test positive for West Nile Virus in Illinois were reported in a small village near St. Charles Twp.

DuPage County Health Department staff collected the positive mosquitoes from Wayne.

IDPH statistics indicate that there were 176 confirmed human cases of West Nile in state last year and that 17 people died after being infected. 74 counties in the state reported a virus positive mosquito batch, bird or human case.

The first mosquitoes to test positive for the virus in 2018 were collected on May 25 in Cook County.

As WSPY reported last year Plano, Yorkville, Oswego, Newark and Minooka all had positive mosquito collections. Collections throughout parts of DeKalb, Kane and Grundy counties were additionally found.

Two human cases of the virus were reported in Aurora in 2018.

On Aug. 29, 2018, WSPY reported that a 65-year-old LaSalle County man was the first first human West Nile virus-related death in Illinois for 2018.

West Nile virus is transmitted through the bite of a mosquito that has picked up the virus by feeding on an infected bird or other animal.

Most people with the virus have no clinical symptoms of illness, but some may become ill three to 14 days after the bite of an infected mosquito. Only about two persons out of 10 who are bitten by an infected mosquito will experience any illness.