In our continuing series looking at the latest medical research and news on COVID-19, we speak with UCSF’s Dr. Peter Chin-Hong. Today’s topics include: Vaccine appointments open to all over 16 in California Plus, when will vaccines be determined safe for those under 16? A CDC committee has extended the pause on the J&J vaccine  Who’s most affected by the pause? Likely  it’s underserved communities  Breakthrough cases: The CDC found that a small group of patients got COVID even after vaccination - including 12 people in L.A. County  A  research project led by the UCLA Fielding School of Public Health determined that neighborhoods with the worst air quality in L.A. County had the highest rate of COVID deaths How worried should we be about the variants The Staples Center is reopening at limited capacity today with the Lakers playing the Boston Celtics - so, it’s a good time to review best practices for moving about in the world  Some are experiencing social anxiety as COVID restrictions ease With guest host Austin Cross Guest: Peter Chin-Hong, M.D., infectious disease specialist and professor of medicine at the UCSF Medical Center; he tweets @PCH_SF