Listen to the new MMWR podcast series. MMWR Weekly COVID-19 Briefing is a weekly podcast to update readers on the latest scientific information from CDC’s COVID-19 response. In this week’s episode, MMWR Editor-in-Chief Dr. Charlotte Kent highlights two MMWR reports on the seroprevalence of SARS-CoV-2 infection as well as another report looking at underlying conditions associated with severe illness from COVID-19 at the county level. Listen to the latest episode.