Daniel Griffin provides a clinical update on COVID-19, then we review results showing requirement for the furin site in the SARS-CoV-2 spike for replication, US state vaccine exemptions, concerns with a rapid diagnostic test, and answers to listener questions.

Daniel Griffin provides a weekly clinical update on COVID-19, then Michael Schmidt discusses how dentistry can be safely practiced during a pandemic, followed by answers to listener questions.

The TWiV team summarizes serology-based tests for SARS-CoV-2, lack of effect of ACE inhibitors or ARBs on COVID-19 severity, and answers listener questions.