The Centers for Disease Control and Prevention said flu cases had waned in recent weeks but that the cold-weather virus could still make a comeback before the end of the season.
"It's not surprising," Dr. Thomas Frieden, director of the CDC, said in teleconference last Friday. "Influenza ebbs and flows during the flu season. The only thing predictable about the flu is that it is unpredictable."
Flu cases have been recorded in 47 states so far this year. But only 24 states reported high flu...Full Story