Pew Research Center is a nonpartisan, nonadvocacy fact tank that informs the public about the issues, attitudes and trends shaping the world.

A world in which the US and World Health Organization are adrift holds repercussions for US national interests and security as well as geopolitical ramifications.

Measles outbreaks in close to half of U.S. states are responsible for over 900 confirmed cases in 2026, according to the Centers for Disease Control and Prevention (CDC).

This article appears in the March 2026 print edition with the headline “How America Got So Sick.” ...

Cases in fully vaccinated people are rare and usually mild, but are likely to become more common as exposure to the virus ...

Share on Pinterest The United States recorded a 33-year high in measles cases in 2025, the highest level of U.S. measles cases since 1992. Jan Sonnenmair/Getty Images The United States is at risk of ...

Over the course of a year, U.S. President Donald Trump’s administration has become the most disruptive force in global trade since the 1930s. But the destruction of the post–Cold War trade order—a ...

President Donald Trump has taken credit for falling crime rates around the country, citing his immigration crackdown and deployment of the National Guard in cities across the U.S. since he began his ...

The Council on Foreign Relations connected with public- and private-sector leaders from outside the United States in mid-January, seeking their anonymous perspectives to facilitate frank discussion.

Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...

Jan. 21 (UPI) --On this date in history: In 1793, French King Louis XVI was executed in Paris, ending more than a thousand years of continuous French monarchy. In 1861, Mississippi Sen. Jefferson ...

The U.S. is the only country allowed to withdraw from the World Health Organization. And Jan. 22 is the day when Trump's pullout announcement is supposed to go into effect.