Pfizer Vaccine Prevents 90% of Infections in Large Study

The transcript discusses the promising efficacy of a new RNA vaccine, which shows over 90% effectiveness. It compares this with other vaccines like measles and flu, highlighting the potential impact on COVID-19. The discussion includes Pfizer's next steps towards emergency use authorization and the challenges of vaccine rollout. The importance of safety data and the potential for future vaccine adaptations are also covered.

What steps are suggested for the public while waiting for vaccine approval?

How many doses are expected to be available by the end of the year according to the text?