As FDA clears second COVID booster for adults 50 and over, questions remain over who will pay

In the fight against the pandemic, the Food and Drug Administration authorized a new round of Moderna and Pfizer COVID-19 vaccines for adults who are 50 or over.

But Dr. Celine Gounder, senior fellow and editor-at-large for Public Health at Kaiser Health News, told CBS News there are questions about both the effectiveness of the additional shots and who will pay for them. 

"I am very skeptical that giving everybody over the age of 50 a fourth dose will have a real impact in the long term on reducing severe disease, hospitalization and death," she said.