(CNN) — Dr. Susan Monarez, who was sworn in as director of the US Centers for Disease Control and Prevention on July 31, has been removed from the position, the White House said Wednesday.

Her departure was quickly followed by the resignation of several high-level veteran agency officials, leaving the CDC leaderless at a perilous time.

Morale, which was already low after deep staff cuts this spring, plummeted after a gunman opened fire on the agency’s main campus in Atlanta on August 8, pocking the buildings with hundreds of bullet holes and killing DeKalb County Police Officer David Rose. Shortly afterward, a further 600 employees got official termination notices.

“Susan Monarez is not aligned with the President’s agenda of Making America Healthy Again,” White House spokesperson Kush

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