Epidemiology

New research dispels the notion that human beings can continue to radically extend their lifespan

Experts call for greater testing of contacts of a person who was infected with the H5N1 bird flu strain before the virus causes a wider outbreak

Infectious disease specialists explain whether vaccines will curb the mpox outbreak that was recently declared a global health emergency

The Oropouche virus, which causes a disease nicknamed “sloth fever” for one of the animals that can be infected, has seen its first cases in the U.S.

We’re in a summer COVID surge, and updated vaccines are due soon. Here’s a quick update on what you need to know

As bird flu spreads in cats, cows and other animals, it has more opportunity to adapt to easily infect humans

A new type of mpox has infected thousands in the Democratic Republic of the Congo and other African countries, but vaccines and treatments are hard to come by

West Nile is the most common mosquito-borne disease in the U.S. Here’s what to know about the infection

A politicized review into transgender medicine in the National Health Service has upended lives in the U.K.—and threatens to spread harm across the globe

Scientists have identified more than 30 different pathogens that they fear could cause the next big pandemic in humans

Dairy workers in Texas show signs of prior, undetected bird flu infections in a new study

From lifesaving cancer treatments and frog “spas” to a view of the cosmos from your own backyard, science can keep you going through the long, hot days of summer