Last November, Joe Biden’s Covid-19 advisory board called for Dr. Messonnier, to take a central role in briefings on the pandemic as a way to elevate science and restore public trust in the CDC. That never happened, and after her reassignment, Messonnier resigned. She now serves as the Executive Director for Pandemic Prevention and Health Systems with the Skoll Foundation. Messonnier leaves behind may questions about the pandemic the Centers for Disease Control and Prevention failed to prevent and proved ill-equipped to manage.