Fast food chains pulling onions from menus as source of deadly E. coli outbreak investigated (Video)

More fast food chains are removing raw onions from their menus after a deadly E. coli outbreak linked to McDonald's quarter pounder burgers. The parent company for Taco Bell, Pizza Hut and KFC says it has proactively removed fresh onions from menus at select locations after McDonalds named them as the likely source of the outbreak. McDonald's said Thursday a California supplier was the source of the fresh onions used in the affected burgers. Each weekday morning, "CBS Mornings" co-hosts Gayle King, Tony Dokoupil and Nate Burleson bring you the latest breaking news, smart conversation and in-depth feature reporting. "CBS Mornings" airs weekdays at 7 a.m. on CBS and stream it at 8 a.m. ET on the CBS News app. Subscribe to "CBS Mornings" on YouTube: https://youtube.com/CBSMornings Watch CBS News 24/7: https://cbsnews.com/live/ Download the CBS News app: https://cbsnews.com/mobile/ Follow "CBS Mornings" on Instagram: https://instagram.com/cbsmornings/ Like "CBS Mornings" on Facebook: https://facebook.com/CBSMornings Follow "CBS Mornings" on X: https://twitter.com/CBSMornings Subscribe to our newsletter: https://cbsnews.com/newsletters/ Try Paramount+ free: https://paramountplus.com/?ftag=PPM-05-10aeh8h For video licensing inquiries, contact: licensing@veritone.com