Mosquito levels are down 50 percent across Western and Midwest states - but the West Nile virus caseload has hit a 22-year high
Pesky mosquitoes seem unavoidable in summer but maybe not for long - in parts of the United States, at least.
Mosquito levels are down 50 percent across Western and Midwest states including Minnesota and North Dakota this year. In Colorado, experts s... [4146 chars]