An extra dose of coronavirus vaccine might help some people, including those with immune system deficiencies, National Institutes of Health director Dr. Francis Collins said Wednesday.
“People who have immune deficiencies, who did not get a full response to the original pair of doses from Moderna or Pfizer, or the one dose from J&J – maybe an additional dose might help those people,” Collins told CNN’s Erin Burnett.
“I wouldn't call that a booster, though,” Collins added. “I would just say that's trying to get the primary immunization up to the level it needs to be – that's under consideration.”
Pfizer said a booster for its vaccine could be needed six months to a year after completion of the first two vaccine doses, prompting a rare public rebuke from the US Centers for Disease Control and Prevention and the US Food and Drug Administration. The company met with administration and top public health officials this week to discuss the data.
“There was nothing there that would change the view of myself, or the FDA or the CDC, that we need boosters imminently,” Collins said. “I think Pfizer was a bit apologetic that they might have jumped the gun a bit on that.”
Collins added that he believes Covid-19 vaccine boosters may be needed at some point but not right now.