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 3:17 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