CDC Chief Sees Covid Vaccine to Public Probable in Mid-2021

The transcript discusses the anticipated timeline for COVID-19 vaccine availability, starting with limited supply in late 2020 and becoming more widely available by mid to late 2021. It highlights the prioritization of high-risk groups and first responders for initial vaccination. The global effort, led by the USA, is termed 'Operation Warp Speed', which aims to expedite vaccine development. Historically, vaccine development takes years, but this initiative seeks to accelerate the process.

What challenges are mentioned regarding the initial supply of the vaccine?

How long does it typically take to develop a vaccine, according to the text?