Infectious disease experts say mRNA vaccines have been studied for decades, they are safe and effective, and were instrumental in saving lives during the COVID pandemic.

Moderna, Inc. (NASDAQ:MRNA) announced on Friday that it has submitted a marketing application to the U.S. Food and Drug Administration (FDA) for review of its updated COVID-19 vaccine. The revised version of the vaccine,

Moderna said on Friday it had filed a marketing application for an updated COVID vaccine to the U.S. Food and Drug Administration.

This week, mRNA vaccines are set to face intense scrutiny from critics in Congress. Here's an explainer of how we know they are safe and effective.

Moderna has withdrawn the Biologics License Application (BLA) for mRNA-1083, a combination vaccine against seasonal influenza and SARS-CoV-2, after

Moderna said on Wednesday it has withdrawn an application seeking approval for its flu and COVID combination vaccine candidate to wait for efficacy data from a late-stage trial of its influenza shot,

The mRNA vaccines were developed using novel technology that was approved for the first time for public use during the COVID-19 pandemic.

Late-stage trial data suggest that a new COVID-flu vaccine offers good protection against both infections, but experts expect the shot's approval may be delayed.