New York State Health Commissioner New York State Health Commissioner Howard Zucker, MD, discusses flu epidemics and other public health issues. Howard Zucker, MD, discusses flu epidemics and other public health issues. Infectious disease expert Infectious disease expert Elizabeth Asiago-Reddy, MD, addresses rising rates of sexually transmitted diseases Elizabeth Asiago-Reddy, MD, addresses rising rates of sexually transmitted diseases. Researcher. Researcher Anna Stewart Ibarra, PhD, explains how climate data can help predict outbreaks of mosquito-borne diseases. Anna Stewart Ibarra, PhD, explains how climate data can help predict outbreaks of mosquito-borne diseases.