Today the CDC posted the data supporting the change in the mask guidelines for the fully vaccinated. It’s in the July 30, 2021 Morbidity and Mortality Weekly Report (MMWR) describing the outbreak of several hundred new cases of the Delta variant COVID-19 infection in Barnstable County, Massachusetts following July 4th events. Those who were fully vaccinated shed virus as much as the unvaccinated.
Organizers of the Iowa State Fair and those planning to attend, take note.
Brown CM, Vostok J, Johnson H, et al. Outbreak of SARS-CoV-2 Infections, Including COVID-19 Vaccine Breakthrough Infections, Associated with Large Public Gatherings — Barnstable County, Massachusetts, July 2021. MMWR Morb Mortal Wkly Rep. ePub: 30 July 2021. DOI: http://dx.doi.org/10.15585/mmwr.mm7031e2external icon.