AstraZeneca March 22, 2021 9:10 am AstraZeneca Says COVID-19 Vaccine is Safe and Effective AstraZeneca says its coronavirus vaccine developed with the University of Oxford was found to be safe and effective in trials conducted in the U.S., Peru and Chile. US & World Videos 4:04 Afternoon clouds over the region on Saturday 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 2:05 Whoopi Goldberg reveals who will inherit her fortune