Health Secretary Robert F. Kennedy Jr. outside the White House on Sept. 9. A new poll finds a deep partisan divide with Republicans trusting Kennedy as much as their own doctor, but he is unpopular among Democrats and independents. Win McNamee/Getty Images hide caption
Health Secretary Robert F. Kennedy Jr.'s affinity for saturated fat and his ire over ultraprocessed foods could influence federal food guidelines, expected out this fall. Francesco Carta fotografo/Moment RF/Getty Images hide caption
President Trump takes questions at the White House following an announcement that federal health officials are updating drug labeling to discourage the use of Tylenol during pregnancy. Andrew Harnik/Getty Images hide caption
ACIP member Retsef Levi speaks during a meeting of the CDC's Advisory Committee on Immunization Practices on September 18, 2025 in Atlanta, Ga. The federal vaccine advisory group, recently appointed by Health Secretary Robert F. Kennedy Jr., made recommendations on the COVID vaccine. Elijah Nouvelage/Getty Images hide caption
Martin Kulldorff (right) speaks with Robert Malone during a meeting of the CDC's Advisory Committee on Immunization Practices on September 18, 2025 in Chamblee, Ga. Elijah Nouvelage/Getty Images hide caption
Members of the Advisory Committee on Immunization Practices meet at the Centers for Disease Control and Prevention headquarters in Atlanta in June. Ben Hendren/Bloomberg/Getty Images hide caption
Former Director of the Centers for Disease Control and Prevention, Susan Monarez, testifies before the Senate Committee on Health, Education, Labor, and Pensions Wednesday in Washington, DC. Kevin Dietsch/Getty Images hide caption
Health Secretary Robert F. Kennedy Jr. and Education Secretary Linda McMahon generally sit next to each other during President Trump's cabinet meetings, as at this one on Aug. 26. Chip Somodevilla/Getty Images hide caption
The CDC's Advisory Committee on Immunization Practice will have five additional members when it convenes Thursday in Atlanta. Ben Hendren/Bloomberg via Getty Images hide caption
Jill Holm-Denoma holds her son, Tyler, after he received a COVID shot in 2021 from nurse Emily Cole at National Jewish Health in Denver. After President Trump appointed anti-vaccine activist Robert F. Kennedy, Jr. to be Secretary of Health and Human Services, Colorado updated state laws to ensure continued access to the COVID shot and other vaccines. David Zalubowski/AP hide caption
Activists gather during a vigil in Lafayette Park for nurses who died during the COVID-19 pandemic on January 13, 2022, in Washington, DC. (Photo by Brendan Smialowski / AFP) (Photo by BRENDAN SMIALOWSKI/AFP via Getty Images) BRENDAN SMIALOWSKI/AFP/Getty Images hide caption
U.S. Health and Human Services Secretary Robert F. Kennedy Jr. presented a strategy report of the Make America Healthy Again Commission intended to tackle childhood chronic disease. Chip Somodevilla/Getty Images hide caption
COVID vaccines used to be available for drop-in patients at many pharmacies. Now with federal policy changes, availability is more limited and may depend on state-by-state guidance. Spencer Platt/Getty Images hide caption
Health and Human Services Secretary Robert F. Kennedy Jr. arrives to testify before the Senate Finance Committee at the Dirksen Senate Office Building on September 4, 2025 in Washington, DC. Andrew Harnik/Getty Images hide caption
Robert F. Kennedy Jr., secretary of Health and Human Services, during a Senate Finance Committee hearing in Washington, D.C., on Thursday. Kayla Bartkowski/Bloomberg via Getty Images hide caption
Evelyn Thompson of Lice Is Simple, a treatment company in Nashville, Tenn., checks the head of a student at a preschool that experienced a lice outbreak over the summer that included at least 13 children. Blake Farmer/WPLN hide caption
The Food and Drug Administration's approvals for the latest round of COVID-19 shots restrict the shots to people at higher risk of complications from COVID. Joe Raedle/Getty Images hide caption
Bullet holes are seen in windows at the Centers For Disease Control and Prevention (CDC) Global Headquarters following an August 8 shooting that killed a DeKalb County Police Department officer. Elijah Nouvelage/Getty Images hide caption
Carroll College professor of biology Grant Hokit drags a white cloth through brush outside of Condon, Mont., looking for ticks. Hokit surveys for ticks statewide for the Montana health department. Aaron Bolton hide caption
Tajdryn Forbes died at 19. He was the glue of his family, mother Naketra Guy said. She called him "humble" and "respectful," a leader in the community and on the football field, where he shined. Kevin Magee hide caption
A researcher works at the Moderna headquarters in Cambridge, Massachusetts. In May, the Trump administration pulled over $700 million committed to Moderna for developing future flu vaccines, and this week it canceled another $500 million in grants to various institutions researching mRNA vaccines. Adam Glanzman/Bloomberg/Getty Images hide caption
Much of the Centers for Disease Control and Prevention's $9 billion budget has been in limbo. Ben Hendren/Bloomberg via Getty Images hide caption
New federal statistics suggest a decline in rates of suicidal thoughts and behavior among teens. Mary Long/Getty Images hide caption