Fauci Says Third Dose of Vaccine ‘Likely’ Necessary

Americans will likely have to get a third shot of the Pfizer and Moderna vaccines, Dr. Anthony Fauci said Thursday at a White House press briefing.

"I must say from my own experience as an immunologist, I would not at all be surprised that the adequate full regimen for vaccination will likely be three doses," Fauci, who is director of the National Institute of Allergy and Infectious Diseases, told reporters. He said the Food and Drug Administration and the Centers for Disease Control and Prevention would make the final decision. Whether those who got the one-shot Johnson & Johnson will need boosters remains to be seen.