In our continuing series looking at the latest medical research and news on COVID-19, Larry Mantle speaks with registered nurse and professor of nursing and public health at UCLA, Kristen R. Choi. 

Topics today include: 

• C.D.C. studies show boosters provide the best protection against the Omicron variant. 
• Post-infection immunity was very effective against Delta, but C.D.C. says vaccines still offer the best defense. 
• L.A. County reports 102 coronavirus deaths on Thursday, the deadliest pandemic day since March 2021. 
• Coronavirus transmission rates are falling across California. 
• Fauci says the F.D.A. could authorize Pfizer’s COVID-19 vaccine for kids under 5 in the next month. 
• UCSF scientists detect anomalies in people with post-COVID “brain fog”. 
• Europe considers new COVID-19 strategy: Accepting the virus. 
• L.A. schools see coronavirus rates decline. 

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