What Is the Definition of Fully Vaccinated? CDC Director Opens Door to Potential Changes

In the case of the two-dose vaccination series, a person must receive the second dose of the same vaccine they initially were given. However, the CDC has authorized people to choose the vaccine they want to receive as their third dose. The CDC noted that some people will opt to stick with their original vaccine and some may choose to go with a different vaccine for their booster.

UAB pediatrician urges parents to vaccinate children 5 to 11 once available

“They voted that the benefits of the COVID vaccine for 5- to 11-year-olds outweighed the risks,” Kimberlin said. “I would anticipate over the next few days we would have a full authorization from the FDA … and on I think Tuesday of next week the CDC will have their own external advisory committee that will also look at these data and will make a recommendation as to whether or not the vaccine should be used. So FDA says it may be used, CDC says how it should be used.”