In our continuing series looking at the latest medical research and news on COVID-19, Larry Mantle speaks with Dr. Peter Chin-Hong, infectious disease specialist and professor of medicine at the UCSF Medical Center. 

Topics today include:

• U.S. mandates vaccines or tests for big companies by Jan. 4.  
• Merck Covid-19 pill cleared for use in the U.K. 
• India’s home-grown Covid-19 shot wins W.H.O. emergency use approval. 
• San Francisco will soon require everyone 5 and older to show vaccination proof for restaurants, theaters, Warrior games. 
• Covid-19 boosters aren’t for everyone. 
• L.A. County to require proof of vaccination at indoor bars, nightclubs, etc starting today.  

This program is made possible in part by the Corporation for Public Broadcasting, a private corporation funded by the American people.