A single dose of the Pfizer-BioNTech coronavirus vaccine reduces the risk of asymptomatic infections, helping to stem transmission, research suggests.The UK has approved three coronavirus jabs –..
Super Bowl 50 & 55 champion Linebacker Shaq Barrett shares stories from his early days with the Broncos and how he learned from some of the league's best to become a two-time Super Bowl winner.
Duke University is testing Pfizer’s coronavirus vaccine on 2,000 children between the ages of 12 and 15 years old. CNN’s Pamela Brown speaks with trial participant Caleb Chung and his father Dr...
Dr. Mallika Marshall reports.
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