Susan Kansagra, MD, MBA¹, Vikki Papadouka, PhD, MPH², Anita Geevarughese, MD, MPH², Michael Hansen, MPH² and Jane R. Zucker, MD, MSc², 1New York City Department of Health and Mental Hygiene, New York, NY, 2Bureau of Immunization, New York City Department of Health and Mental Hygiene, New York, NY