In our continuing series looking at the latest medical research and news on COVID-19, Larry Mantle speaks with Dr. Dean Blumberg from UC Davis. 

Topics today include:

• Brazilian coronavirus variant detected in San Diego 

• LA, Orange counties may move to Orange tier — what will reopen? 

• ‘Variants of concern’ made up majority of L.A. County coronavirus samples tested this past week 

• California's COVID-19 numbers are low. But hot spots are emerging in other parts of the country 

Guest:

Dean Blumberg, M.D., professor of medicine and chief of Pediatric Infectious Diseases at UC Davis Children’s Hospital