Ex-CDC Official Details RFK Jr. Vaccine Panel Overhaul And Measles Response Turmoil
Dr. Debra Houry said Sunday that "pure chaos" gripped the Centers for Disease Control and Prevention as HHS Secretary Robert F. Kennedy Jr. moved to reshape the agency's vaccine policy and advisory panel.[1]
She made the remarks on Face the Nation and said many of Kennedy's advisers lacked medical, scientific or government backgrounds.[1] Houry said Kennedy removed all 17 members of the Advisory Committee on Immunization Practices (ACIP) on June 9, 2025 and bypassed the usual selection process to install allies, some tied to lawsuits against vaccine manufacturers.[1] She said the reconstituted ACIP met three times, most recently in December 2025.[1] Those panels voted to remove thimerosal from all flu vaccines, end the universal newborn Hepatitis B dose recommendation, and sharply shrink the childhood vaccination schedule.[1] Houry also said the new members were initially installed without completing CDC-required conflict-of-interest and ethics background forms and that she raised concerns by email which prompted later vetting.[1]
Robert F. Kennedy Jr. was confirmed as HHS secretary on February 13, 2025 by a 52-48 Senate vote. A measles outbreak began in West Texas in late January 2025 and grew into the largest U.S. surge since elimination, with 2,289 cases in 2025 and roughly 2,170 confirmed so far this year. Internal clashes over vaccine messaging and data priorities culminated in the August 2025 firing of CDC director Susan Monarez and in Houry's resignation along with three other senior officials.
Houry told CBS she provided internal emails to the Senate Health Committee that were released in late June 2026 and that document her objections to the ACIP changes and her warning that "data, science and facts would not be enough." CBS News In earlier reporting published July 2, she said Kennedy's response to the measles outbreak "was not based on science." CBS News
The mainstream summary does not mention that the Advisory Committee on Immunization Practices (ACIP) was completely reconstituted, replacing all 17 sitting members, including 13 appointed by the previous administration. This significant shift raises questions about the continuity and credibility of vaccine policy under Kennedy's leadership, as the ACIP has historically consisted of 15 voting members who are U.S. citizens external to the federal government since its expansion in 1964. Furthermore, while the summary notes the removal of thimerosal from flu vaccines and changes to the childhood vaccination schedule, it fails to provide context that thimerosal had already been reduced in routine childhood vaccines by 2001, indicating that the recent changes may not be as groundbreaking as implied. The summary also downplays the internal dissent within the CDC, as highlighted by Houry's warnings that the agency's response to the measles outbreak was not grounded in science, and that political reviews of CDC decisions were prioritized over scientific integrity. This politicization, as noted by various commentators, could undermine public trust in health agencies and vaccine policies, a concern that the mainstream account does not fully explore.
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📊 Relevant Data
The Advisory Committee on Immunization Practices (ACIP) has consisted of 15 voting members (U.S. citizens external to the federal government), plus ex officio members and liaison organizations, since expanding from its original 8 members in 1964; the June 2025 removal replaced all 17 sitting members at once, including 13 appointed by the prior administration in 2024.
History and Evolution of the Advisory Committee on Immunization Practices — CDC MMWR
As of July 2, 2026, 2,170 confirmed measles cases had been reported in the United States for the year, following 2,289 cases in calendar year 2025.
Thimerosal was removed or reduced to trace amounts in all routine childhood vaccines for children 6 years and under manufactured for the U.S. market by 2001, while some multi-dose influenza vaccines retained it; prior ACIP recommendations did not prefer thimerosal-free flu vaccines over those containing it.
Thimerosal and Vaccines — CDC
📌 Key Facts
- In a Sunday, July 5, 2026 'Face the Nation' interview, former CDC chief medical officer Debra Houry described “pure chaos” at CDC as HHS Secretary Robert F. Kennedy Jr. sought to overhaul the agency’s policies and personnel and said many of his advisers lacked medical, scientific or government backgrounds.
- Houry said Kennedy removed all 17 members of the Advisory Committee on Immunization Practices (ACIP) on June 9, 2025 and bypassed the usual selection process to install allies, some of whom were tied to lawsuits against vaccine manufacturers.
- Houry recounted that the new ACIP members were initially installed without completing CDC-required conflict-of-interest and ethics background forms under the FACA process; after she raised concerns by email the members went back and completed vetting.
- The reconstituted ACIP met three times, most recently in December 2025, and voted to remove thimerosal from all flu vaccines, end the universal newborn Hepatitis B dose recommendation, and dramatically reduce the number of shots in the childhood vaccine schedule.
- Houry told CBS she provided internal emails to the Senate Health Committee, released in late June 2026, documenting her objections to the ACIP changes and her concern that “data, science and facts would not be enough.”
📰 Source Timeline (2)
Follow how coverage of this story developed over time
- In a July 5, 2026 'Face the Nation' interview, former CDC chief medical officer Debra Houry described 'pure chaos' at CDC as HHS Secretary Robert F. Kennedy Jr. sought to overhaul the agency’s policies and personnel.
- Houry said Kennedy removed all 17 members of the Advisory Committee on Immunization Practices (ACIP) on June 9, 2025 and bypassed the usual selection process to install allies, some tied to lawsuits against vaccine manufacturers.
- She disclosed that the reconstituted ACIP met three times, most recently in December 2025, voted to remove thimerosal from all flu vaccines, ended the universal newborn Hepatitis B dose recommendation, and 'dramatically reduced' the number of shots in the childhood vaccine schedule.
- Houry said the new ACIP members were initially put in place without completing CDC-required conflict-of-interest and ethics background forms under the FACA process; after she raised concerns by email, the members went back and completed vetting.
- She recounted that Kennedy refused to receive a briefing from CDC’s top medical official on the ongoing 2025 measles epidemic and that many of his advisers lacked medical, scientific, or government backgrounds.
- Houry told CBS she provided internal emails to the Senate Health Committee, released in late June 2026, documenting her objections to the ACIP changes and her concern that 'data, science and facts would not be enough.'