This article appears in the January 2026 print edition with the headline “The Most Powerful Man in Science.” ...

The resurgence of whooping cough has no single cause. Instead, several problems are occurring at once: falling vaccine ...

While uncommon, off-label vaccination is sometimes recommended. One example is off-label vaccination against measles, mumps and rubella, or MMR, for children under 12 months old who plan to travel to ...

You had to go through a metal detector to get to the Children’s Health Defense conference, held in Austin, Texas, on November 7–9, and conversation on the first morning buzzed about it. At the Make ...

Families planning Thanksgiving trips may need to keep an eye not just on the weather, but on where COVID-19 is starting to ...

The largest current outbreak is along the Utah-Arizona border. Late yesterday Arizona health officials said there were nine ...

Early uptake of the measles, mumps, and rubella (MMR) vaccine rose rapidly in Texas infants after the start of the state's ...

ABC News' Medical Correspondent Dr. Darien Sutton reports on the CDC's updated language on vaccines and autism requested by Health and Human Secretary Robert F. Kennedy Jr.

Dr. Debra Houry, who resigned from her position as chief medical officer of the CDC in 2025, called the change on the CDC’s website "disturbing." ...

Former CDC acting Director Dr. Richard Besser spoke with ABC News’ Rhiannon Ally about the CDC webpage that was changed to suggest a link between autism and vaccines.

The CDC’s new wording on vaccines and autism contradicts decades of scientific consensus and draws fierce backlash from ...