Questions swirl over who's running the CDC

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.