Public Health

Staff members have been instructed to scrub this topic and ‘biodefense’ from the agency’s website, a Nature investigation finds

The Trump administration rescinded the 2009 “endangerment finding,” ending regulation of greenhouse gases from cars and trucks

A new study finds a variety of hair extensions—from natural to synthetic—contain chemicals associated with cancer, birth defects and reproductive issues

The American Medical Association is launching an effort to evaluate vaccine safety and effectiveness independently of U.S. government health agencies

The South Carolina measles outbreak has triggered rare but serious brain swelling in some children

Dozens of routinely updated CDC databases have gone quiet. Here’s what states and medical societies are doing to preserve U.S. public health

There’s no safe level of exposure to lead—but a small, strange study shows we’ve made incredible progress in recent decades

Americans are living longer than ever but still well behind the life expectancy of other developed countries

Socializing children at a young age helps them develop greater diversity in their microbiome, according to an analysis of baby-to-baby transmission of gut bacteria

Scientists are using technology developed to study earthquakes to address an out-of-this-world risk

Cases of respiratory syncytial virus are increasing, but vaccines and antibody shots can keep young children out of the hospital

The U.S. has held its measles-free status for more than 25 years. Experts say unrelenting outbreaks in the past year may change that