Chicago crow tests positive
The county did not find West Nile-positive mosquitoes in 2010, but officials say it’s not unusual for Butler County to have at least one vial returned positive during the year.
The county health department says the 12 year-old boy was hospitalized briefly.
One case near Rend Lake
Mosquitoes carrying west Nile like to breed in stagnant water, which is more prevalent in hot, dry conditions.
Mosquitoes with West Nile have been found in communities ranging from Lemay in the southern part of the county to Florissant.