What Is the Legionnaires’ Disease Outbreak That Has Killed Two People in New York City?
Fifty-eight people have been infected—and two have died—in a New York City outbreak of Legionnaires’ disease—a severe type of pneumonia caused by a bacterium commonly associated with air-conditioning systems and cooling towers
Why Ticks and Lyme Disease Are Soaring This Summer
A vector ecologist explains the complexities of tracking tick-borne diseases like Lyme in a climate-changed world
Pneumonic Plague Infections in Modern Times Show the Black Death Isn’t Dead
A person in Arizona recently died of pneumonic plague—a rare and severe form of the disease. An expert explains how the bacteria that spurred the Black Death centuries ago continues to claim lives
What Would It Take for Bird Flu to Spread among Humans?
The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another question
Deadly Bacteria May Be Moving to a Beach Near You
Illnesses from stealthy pathogens known as Vibrio are advancing northward along numerous coasts, potentially ruining your summer vacation
Workers Have Died in Extreme Heat as OSHA Has Debated Protections
The June heat dome contributed to the deaths of at least three people. They have died as federal regulators have weighed whether to finalize the nation’s first heat protection rule for workers
U.S. Budget Cuts Are Robbing Early-Career Scientists of Their Future
Canceled grants and slashed budgets are disproportionately affecting junior health researchers, dealing a major blow to the future of science and society in the U.S.
To Save Patients from Extreme Heat, a Hospital Is Turning to AI
AI could be used to comb through electronic health records and warn vulnerable people about dangerous heat waves
This is How We Fight Bird Flu If H5N1 Becomes the Next Human Pandemic
This San Antonio, Tex., lab takes biosecurity seriously. Suit up with its scientists and go behind the scenes of the science of vaccine creation.
What Is Thimerosal? Why Most Vaccines Don’t Contain Mercury Anymore
Thimerosal, which contains an organic compound of mercury, has been phased out as a preservative for vaccines. Here’s how we know it was safe to use
See Vaccine Recommendations Backed by Science in These Handy Charts
These graphics will guide you through science-based vaccine guidelines for children and adults
When Wildfire Smoke Arrived from Canada, Federal Safety Experts Were Gone
Health specialists were put on leave, and a report on how to protect 20 million workers from wildfire smoke has stalled