Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems might be primed to fend off a worse case, research finds.

In a recent appearance on Fox News, Robert F. Kennedy Jr. ate French fries cooked in beef tallow and mused that 'food is medicine.' Nutrition scientists are scratching their heads.

Dr. Dave Weldon, Trump's pick for director of the Centers for Disease Control and Prevention, was withdrawn from consideration shortly before a scheduled Senate confirmation hearing.

Data shows it can prevent six types of cancer. But anti-vaccine activists, including U.S. Health Secretary Robert F. Kennedy Jr., have helped dampen its usage.

The Health Secretary's assertion inaccurately characterizes the 2009 government report he cites, according to an NPR review and interviews with former committee members.

Dr. Marty Makary, President Trump's pick to run the Food and Drug Administration, faced questions from the Senate HELP Committee on the abortion pill, vaccines, FDA firings and chemicals in food.

Some states are trying to make it easier for doctors trained in other countries to work in the U.S. Skeptics say other licensing and hiring barriers could hamper this effort.

Vaccination eliminated measles from the U.S. 25 years ago. But it can still spread in pockets where vaccination rates are low, like the west Texas county with a current outbreak. Here's how fast.

Iowa has the second highest incidence rate of cancer in the country, and it is already feeling Trump's cuts to the workforce and research institutions trying to solve the rural cancer problem.

Staff and observers worry that the agency may not be prepared for emerging threats including bird flu and insect-borne diseases.

A policy change by the Trump administration allows immigration agents to enter and arrest people in health facilities. Some clinics are training health workers to support patients in the event of arrests.

The panel of vaccine experts were supposed to hold their first meeting under the Trump administration in late February. It's not clear when that meeting will now take place.

A study shows more people are looking for help to manage gambling addiction, in the years after a Supreme Court decision allowed online sports betting in 38 states.

The fired staffers were tasked with making sure medications given to animals work well and are safe.

Adam Ratner predicts the appointment of anti-vaccine activist Robert F. Kennedy Jr. will impact vaccine availability and hesitancy: "It is much easier to scare people than to unscare them," he says.