Centers for Disease Control and Prevention Director Dr. Rochelle Walensky has endorsed giving workers in high-risk settings booster vaccine shots despite opposition from a CDC panel. On Thursday, the panel recommended making Pfizer-BioNTech booster shots available to people over the age of 65, nursing home residents and people with underlying health conditions. But the panel did not recommend booster shots for younger healthcare workers, teachers and others in high-risk settings, but Walensky then overruled the panel. Many global health experts have criticized the Biden administration for promoting booster shots while much of the world remains unvaccinated.