Stephen Benoit, MD, MPH¹, Howard Burkom, PhD², Anne McIntyre, PhD, MPH³, Krista Kniss, MPH³, Lynnette Brammer, MPH³, Lyn Finelli, DrPH, MS³ and Seema Jain, MD³, 1Office of Surveillance, Epidemiology, and Laboratory Services, Public Health Surveillance Program Office, Center for Disease Control and Prevention, Atlanta, GA, 2National Security Technology Department, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, 3Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA