Pfizer’s COVID-19 booster shot should not be administered to those who previously received vaccines made by Moderna or Johnson & Johnson, said a top federal health official. Doran Fink, a deputy director in the Food and Drug Administration’s (FDA) vaccine regulation division, made the assessment during a Centers for Disease Control and Prevention (CDC) vaccine advisory panel on whether or not the agency should recommend an additional dose of the Pfizer-BioNTech vaccine. “Data are not available to inform the interchangeability of a booster dose of one vaccine with the primary series of another vaccine,” Fink said at a meeting of the CDC’s Advisory Committee on Immunization Practices on Wednesday. Ultimately, the FDA on Wednesday authorized Pfizer booster shots for individuals aged 65 and older as well as for those at a high risk of COVID-19, coming after an advisory panel last week voted overwhelmingly against recommending the third Pfizer dose …