Week of August 2, 2021 MMWR Weekly Briefing

This episode discuses three MMWR COVID-19 reports. The first report describes how vaccination provides better protection from reinfection than does natural immunity among people who were previously infected with COVID-19. The second report highlights the rapid increase in Delta variant cases in Mesa County, Colorado, including breakthrough cases for people who have been vaccinated. The last report emphasizes how all COVID-19 vaccines are highly effective in preventing COVID-19 related hospitalizations in older adults.