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, two sources familiar with the move told Reuters.

 

Panagiotakopoulos said in an email to work group colleagues that her decision to step down was based on the belief she is "no longer able to help the most vulnerable members" of the U.S. population.

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