Confusion over shifting Centers for Disease Control and Prevention COVID-19 vaccine recommendations are reigniting questions in the public health community over who's running the agency. • The answer: no single person.

Why it matters: Almost six months into the Trump administration, the vaunted health agency is staring down threats like respiratory viruses, avian flu and foodborne diseases without a bona fide public health official or designated point person at the helm. • That's left some decisions flowing straight up to Health Secretary Robert F. Kennedy Jr.

What they're saying: "You want to make sure the agency is ready should there be a public health emergency," said Richard Besser, a former acting CDC director and now head of the Robert Wood Johnson Foundation. • "That's somet

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