Dr. Anthony Fauci defended the Biden administration's booster rollout plans on Sunday, downplaying confusion over the initial target date and who should actually get the additional jabs. President Joe Biden previously said boosters would be available to all this week. However, Fauci said it was always up to the FDA and its advisers to determine "exactly what that rollout would look like." On Friday, a key federal advisory committee recommended a third dose of the Pfizer-BioNTech COVID-19 vaccine six months after full vaccination for only people 65 and older and those at high risk of severe COVID-19. Dr. Francis Collins, director of the National Institutes of Health director, called the decision a preliminary step and predicts broader approval for most Americans "in the next few weeks."