On Sunday, CNN reported that the CDC held a video conference with approximately 800 staff members to discuss the traumatic event and allow them to ask questions. Staff said they felt like "sitting ducks" as bullets whizzed just over their cubicle walls and they dove for the floor.

The bill proposes that the Department of Public Health be able to set independent standards should the federal government fail “to maintain a robust schedule of vaccine recommendations.”

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In at least six internal calls on Monday, CDC employees told leaders they worried that the agency wasn’t prepared for future threats, according to people on the calls. The potential for unauthorized people getting on campus or slow warnings about possible attacks were among the concerns shared with leaders.

Adams, who served as surgeon general during the first Trump administration, said Kennedy's assertions about the efficacy of mRNA vaccines are "simply not true."