Johns Hopkins' Dr. Naor Bar-Zeev on Race for Covid-19 Vaccine

The transcript discusses the optimistic timelines for vaccine development and the challenges in ensuring global distribution. It highlights the need for careful analysis of phase three results, the limited initial availability for frontline workers, and the certainty of delayed public access. The global supply is expected to cover only 20% by the end of 2021, assuming no safety issues. The importance of multiple successful vaccines across regions is emphasized to ensure widespread access.

What is the estimated global supply of vaccines by the end of 2021?

Why is it important to have multiple vaccines successful in the global supply?