Alexa Oster, MD

CAPT Alexa Oster leads CDC’s efforts to use molecular and other data to detect HIV clusters and outbreaks and respond to prevent transmission, including leading a multiagency workgroup for the Respond pillar of the Ending the HIV Epidemic initiative. She also serves as a member of the leadership team for the National HIV Surveillance System. Dr. Oster graduated from Vanderbilt University and the University of Pennsylvania School of Medicine. She completed her residency in Primary Care Internal Medicine at the University of California, San Francisco/San Francisco General Hospital.

Dr. Oster joined CDC in 2007 as an Epidemic Intelligence Service Officer in the Division of HIV/AIDS Prevention and later held a position working with National HIV Behavioral Surveillance. She has authored or coauthored more than approximately 100 publications on a variety of topics. She has also held leadership positions in emergency responses to COVID-19, Zika, Ebola, and H1N1 influenza.