A senior scientist at the US CDC has resigned, warning that changes in leadership may weaken the country’s vaccine program.

Public backlash is growing against the nation’s top health official RFK Jr., as more Americans stand up to the Trump administration. Dr. Fiona Havers joins MSNBC’s Jason Johnson to discuss. (Subscribe ...

Former CDC infectious disease expert Dr. Fiona Havers tells CNN’s Jake Tapper why she resigned her post as a senior vaccine ...

A senior vaccine expert at the CDC has resigned in protest, warning that RFK Jr.'s sweeping changes to vaccine policy and ...

The epidemiologist and immunologist Michael Mina called Kennedy’s move a “code red” for vaccines in America. Reportedly, none ...

A senior scientist at the U.S. Centers for Disease Control and Prevention has resigned, warning that changes in leadership ...

President Donald Trump, left, speaks as Health and Human Services Secretary Robert F. Kennedy Jr. listens during a Make ...

A newly posted agenda for next week’s meeting of the just-appointed group of outside vaccine advisers to the US Centers for ...

A CDC official who oversaw the agency’s Respiratory Virus Hospitalization Surveillance Network, known as RESP-NET, has resigned, citing concerns about how the data will be used to inform vaccine ...

Dr. Fiona Havers is influential among researchers who study immunizations. The wholesale dismissal of the agency’s scientific ...