Day: July 25, 2007

West Nile Virus: A Dangerous Season Returns By Sara Dabney Tisdale Posted 7/23/07 West Nile virus season is upon us. Each year, reported infections of the disease tend to occur mainly between late July and early September. Cases of the mosquito-spread illness—a couple of them lethal—have already cropped up in states as far apart as California, Mississippi, and North Dakota. But it’s not yet clear where, if anywhere, the highly unpredictable virus will be big this year. “From one year to the next, we don’t know where it will break out,” says Gary Nabel, director of the