Lakshmi Panagiotakopoulos said she could no longer help vulnerable people after officials removed recommendations to immunize children and pregnant women.

Pediatric infectious disease expert Dr. Lakshmi Panagiotakopoulos resigned on Tuesday as co-leader of a U.S. CDC working group that advises outside experts on COVID-19 vaccines and is leaving the agency,

A top coronavirus vaccine adviser to the Centers for Disease Control and Prevention (CDC) resigned from the agency, citing concerns that she would no longer be able to help the most vulnerable people following a change in the agency’s recommendations for healthy children and pregnant women.