The U.S. Food and Drug Administration authorized two revisions to Moderna’s coronavirus vaccine, allowing it to provide additional doses from each vial.
Australian health officials say they are investigating a possible link between the AstraZeneca vaccine and a 44-year-old man admitted to a Melbourne hospital with possible clotting.
The director of the Centers for Disease Control and Prevention again urged Americans not to let their guards down, noting a 12 percent increase in the seven-day average for new coronavirus cases and rising hospitalizations.
Peter Navarro urged then-president Donald Trump to acquire critical medical supplies in the early days of the outbreak — and after the warning was ignored, pursued an ad hoc billion-dollar strategy that has since prompted multiple probes.
More than 30 million cases have been reported domestically, while the total number of fatalities in the United States reached 553,000. Nearly 100 million people have received at least one dose of a coronavirus vaccine in the United States.