Hot, dry weather in the Midwest has created the perfect conditions for mosquitoes. Ohio, Indiana, and Illinois are reporting higher rates of mosquitoes carrying the West Nile Virus, as compared with past years. The Ohio Department of Health reports a 460-percent increase in mosquitoes carrying the virus. Mosquito samples testing positive rose from 38 last year to 213 this year, the highest number since 2002. No human cases have been reported in Ohio, but Illinois and Oklahoma report earlier-than-usual cases of human infection. Health officials urge people to wear insect repellent and stay indoors between dusk and dawn to avoid contracting the virus.