Moderna Asks FDA To Authorize A Booster Shot Of Its COVID-19 Vaccine. : Coronavirus Updates : NPR

A third shot of the Moderna vaccine boosts protection across age groups, notably in older adults, the company says.   Juana Miyer/Long Visual Press/Universal Imag hide caption toggle caption   Juana Miyer/Long Visual Press/Universal Imag   A third shot of the Moderna vaccine boosts protection across age groups, notably in older adults, the company says….