A woman walks past signboards of the Busan International Film Festival (BIFF) after a press conference on the festival overview in Seoul, Sept. 4, 2018.

electron microscope image shows SARS-CoV-2

A critical care respiratory therapist works with a COVID-19 patient at Sarasota Memorial Hospital in Sarasota, Florida, February 11, 2021.

Director of the Centers for Disease Control and Prevention (CDC) Dr. Rochelle Walensky