COVID-19 vaccine boosters could mean billions for drugmakers

In this March 2021 photo provided by Pfizer, a technician works on a line for packaging preparation for the Pfizer-BioNTech COVID-19 vaccine at the company's facility in Puurs, Belgium. (Pfizer via AP)

Billions more in profits are at stake for some vaccine makers as the U.S. moves toward dispensing COVID-19 booster shots to shore up Americans’ protection against the virus.