(NewsNation) — The exodus continues at the U.S. Centers for Disease Control and Prevention: Three top officials have resigned, following the ouster of director Susan Monarez.

NewsNation correspondent Libbey Dean confirmed Wednesday the resignations of Deb Houry, CDC chief medical officer; Dan Jernigan, director of the National Center for Emerging and Zoonotic Infectious Diseases; and Demetre Daskalakis, director of the National Center for Immunization and Respiratory Diseases.

The Senate confirmed Monarez late last month. She had served as acting CDC Director shortly after the start of the second Trump administration and previously was deputy director at the Advanced Research Projects Agency for Health (ARPA-H).

President Trump chose Monarez as his second choice after his first choice,

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