Health officials are warning the West Nile virus season isn't over yet. Here's where the mosquito-borne illness has been spreading.
High counts of West Nile virus cases are being reported in the U.S. this year, according to federal health data — and health officials are warning the season for this mosquito-borne disease isn't over yet.
As of Sept. 9, at least 771 human cases acro... [2578 chars]