1. Amber Levanon Seligson, Karen A. Alroy, Michael Sanderson, Ariana N. Maleki, Steven Fernandez, April Aviles, Sarah E. Dumas, Sharon E. Perlman, Christina C. Norman, R. Charon Gwynn, and L. Hannah Gould at the time of writing the paper were with the New York City Department of Health and Mental Hygiene, Long Island City, NY. Kathryn Peebles was with the Epidemic Intelligence Service assigned to the New York City Department of Health and Mental Hygiene, Centers for Disease Control and Prevention, Atlanta, GA.