Sep.20 -- The U.S. will soon allow entry to most foreign air travelers as long as they’re fully vaccinated against Covid-19. Meanwhile, Pfizer Inc. and partner BioNTech SE said their Covid vaccine was safe and produced strong antibody responses in children ages 5 to 11 in a large-scale trial. And the U.S.’s Covid deaths have surpassed the toll of the 1918 influenza pandemic. Kara Wetzel reports on "Bloomberg Daybreak: Australia."