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The tools the US used to contain previous bird flu outbreaks just aren't working this time, according to some agricultural experts. Some egg farmers have called for vaccinations for poultry.

Millions of Americans use cannabis and would like to think the products they buy are safe. But regulation is state by state and full of holes. NPR's new series digs into the risks and solutions.

Most states allow some sale of cannabis, but testing for pesticides and mold in the weed supply varies from one state to another.

Two years after derailment, toxic chemicals still roll through East Palestine.

What is the history of misinformation in the United States and how do we find truth in a sea of falsehoods?

Wall Street is feeling tariff whiplash, plunging and then recovering some ground as President Trump said he would delay at least part of his promised global trade war.

At the East Wind Foundation, in the heart of Los Angeles' Chinatown, young people dedicate their after-school hours and weekends to practice the traditional folk art of lion dancing.

The next big advance in treating diseases like rheumatoid arthritis could be tiny pulses of electricity delivered to the vagus nerve.

Scientists want the U.S. and Canada to designate microplastics as a “chemical of mutual concern," adding them to a list of contaminants that both countries must monitor.

Los Angeles Times owner Patrick Soon-Shiong has become a fierce champion online for Robert F. Kennedy Jr.'s nomination for U.S. Secretary of Health and Human Services.