FILE – In this May 19, 2021 file photo, Centers for Disease Control and Prevention Director Dr. Rochelle Walensky testifies during a Senate Appropriations Subcommittee hearing on Capitol Hill in Washington. Hospitals trying to catch up on surgeries and other procedures that were put on hold amid the coronavirus pandemic are now finding themselves facing a delta-variant driven influx of patients. Walensky said Friday, July 16, that nearly all hospital admissions and deaths were among the unvaccinated. (Jim Lo Scalzo/Pool via AP)