TWiV provides an update on immunity to Omicron, results of a randomized controlled trial of face masks, and a study of correlates of protection against respiratory syncytial virus infection in the upper and lower respiratory tract of nonhuman primates.

A TWiV duo reviews how SARS-CoV-2 attacks the olfactory mucosa but spares the olfactory bulb, vaccination with BNT162b2 induces virus-specific stem cell memory T cells, and development of an oral protease inhibitor for the treatment of COVID-19.

Greg Zuckerman joins TWiV to discuss his book that explores the race to produce COVID-19 vaccines, with insights into the companies, scientists, and executives involved and the rivalries, ambitions, ego, and a desire to save the world.

The meteorologicomaniacs discuss the COVID-19 pandemic global death toll, effectiveness of vaccines against the delta variant, and how analysis of ancient viral DNA reveals that two pathogenic human viruses were brought into Mexico during the transatlantic slave trade.

On this episode, broadening of immune responses to SARS-CoV-2 after mRNA vaccine booster to ChAdOx1 nCoV-19, five-fold underestimation of the number of cases in the US during the first six months of the pandemic, and a monoclonal antibody that broadly neutralizes many different sarbecoviruses.