JUST IN: Drugmaker Moderna asked the Food and Drug Administration on Thursday to authorize a fourth shot of its COVID-19 vaccine as a booster dose for all adults.
The request is broader than rival pharmaceutical company Pfizer's request earlier this week for the regulator to approve a booster shot for all seniors.
U.S. officials have been laying the groundwork to deliver additional booster doses to shore up the vaccines' protection against serious disease and death from COVID-19. The White House has been sounding the alarm that it needs Congress to"urgently" approve more funding for the federal government to secure more doses of the COVID-19 vaccines, either for additional booster shots or variant-specific immunizations.
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