coronavirus August 14, 2024 6:00 pm California experiencing COVID summer surge Raj Mathai speaks with UCSF infectious disease specialist Dr. Peter Chin-Hong on the summer COVID surge. US & World Videos 4:02 Updated COVID vaccines coming 3:17 Slight summer uptick of COVID cases in California 3:57 Interview: Doctor's perspective on COVID 4 years after shutdown started 2:09 CDC updates COVID isolation guidelines 1:37 Study examines effectiveness of main COVID treatment Paxlovid