Katherine Marshall, MPH1, Asma Madad, MS, MPH2, Hilary Rosen, MPH3, Beth Melius, RN MN MPH4, Michelle M. Boyle, MPH5, Brandon Adcock3, Jessica Brockmeyer6, Tyann Blessington2, Asha Dwarka2, David Kiang7, Zuzana Kucerova1, Errol Strain8, Steven G. Stroika1, Natasha Dowell, MPH1 and Colin A. Basler, DVM, MPH, DACVPM1, (1)Centers for Disease Control and Prevention, Atlanta, GA, (2)Food and Drug Administration, College Park, MD, (3)California Department of Public Health, Sacramento, CA, (4)Washington State Department of Health, Shoreline, WA, (5)Maryland Department of Health, Baltimore, MD, (6)Connecticut Department of Public Health, Hartford, CT, (7)California Department of Public Health, Richmond, CA, (8)Food and Drug Administration, Silver Springs, MD