“Dual mutant” flu strains with some resistance to antiviral drug found in U.S. (Video)

The CDC says at least two cases of so-called "dual mutant" flu strains have been detected in the United States. The strains have genetic changes that could impact the effectiveness of the main flu antiviral that hospitals rely on, commonly sold under the brand Tamiflu. Dr. William Schaffner, professor of infectious diseases at Vanderbilt University Medical Center, joined CBS News to discuss the virus. CBS News 24/7 is the premier anchored streaming news service from CBS News and Stations that is available free to everyone with access to the internet and is the destination for breaking news, live events, original reporting and storytelling, and programs from CBS News and Stations' top anchors and correspondents working locally, nationally and around the globe. It is available on more than 30 platforms across mobile, desktop and connected TVs for free, as well as CBSNews.com and Paramount+ and live in 91 countries. Subscribe to the CBS News YouTube channel: https://youtube.com/cbsnews Watch CBS News 24/7: https://cbsnews.com/live/ Download the CBS News app: https://cbsnews.com/mobile/ Follow CBS News on Instagram: https://instagram.com/cbsnews/ Like CBS News on Facebook: https://facebook.com/cbsnews Follow CBS News on X: https://twitter.com/cbsnews Subscribe to our newsletters: https://cbsnews.com/newsletters/ Try Paramount+ free: https://paramountplus.com/?ftag=PPM-05-10aeh8h For video licensing inquiries, contact: licensing@veritone.com