coronavirus September 18, 2024 7:02 am New XEC COVID-19 variant starting to spread overseas A new COVID-19 variant spreading overseas is now expected to become the primary strain in the U.S., possibly before the arrival of winter. Bob Redell reports. US & World Videos 4:02 Updated COVID vaccines coming 3:12 California experiencing COVID summer surge 1:58 COVID summer surge: CDC data shows cases ‘very high' in California 2:23 Bay Area COVID-19 levels on the rise this summer 2:27 Summer surge? South Bay health officials keep close eye on COVID-19 concentrations