Susan Monarez is expected to testify she was fired because she would not approve controversial vaccine recommendations.

Susan Monarez and another former agency official are appearing before the Senate. Here are the latest updates.

Susan Monarez, the fired CDC director, and Debra Houry, one of three top agency leaders who resigned in protest, are testifying before the Senate health committee.

Former Centers for Disease Control and Prevention Director Susan Monarez is testifying before the Senate health committee

America’s public health system is headed to a “very dangerous place” with Health Secretary Robert F. Kennedy Jr. and his team of anti-vaccine advisers in charge, fired Centers for Disease Control and Prevention chief Susan Monarez warned senators on Wednesday.

"Part of our responsibility today is to ask ourselves, if someone is fired 29 days after every Republican votes for her, the Senate confirms her, the secretary said in her swearing in that she has 'unimpeachable scientific credentials' and the president called her an incredible mother and dedicated public servant -- like what happened?

Dr. Susan Monarez, former director of the US Centers for Disease Control and Prevention, said in a Senate committee hearing on Wednesday that US Health and Human Services Secretary Robert F. Kennedy Jr.

Former CDC director Susan Monarez is appearing before the Senate Committee in her first public appearance since she was pushed out of her position leading the nation's public health agency.