UPDATE: Weekly FluView Map and Surveillance Report for Week Ending May 15, 2010

During week 19 ( May 9 – 15, 2010), influenza activity decreased in the U.S. 14 (0.9%) specimens tested by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division were positive for influenza.