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Omicron variant may increase risk of COVID reinfection, study finds

New research fuels calls in rich nations for people to get booster shots, while African scientists warn that without vaccine equity, this will just keep happening

Couple builds world-class art collection

Don and Mera Rubell have been collecting art for more than 50 years. They’re ranked among the world’s top 200 art collectors and are credited with having the “Midas touch.” “CBS Saturday Morning” co-host Michelle Miller met up with the couple at the Rubell Museum where they’ve curated one of the largest contemporary art collections in the world.