This week, CDC Director Susan Monarez was ousted from her position after clashing with HHS Secretary Robert F. Kennedy over vaccine policy and her refusal to fire several veteran CDC leaders, according to people familiar with the situation. Her removal was followed by the resignations of several senior leaders. Late this week, Kennedy said Deputy HHS Secretary Jim O’Neill will serve as acting director of the CDC. “Our agency is crumbling,” a source within the CDC, who is not allowed to speak to