Epidemiology

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

Flaws in the CDC's H5N1 test highlight the risks of relying on a single test supplier, some experts say

Researchers are still working to understand the complicated and debilitating condition dubbed long COVID

A combination of human behavior and immunity, the environment, and SARS-CoV-2 itself explains why the virus surges during both hotter and colder months

Researchers are investigating changes in cancer risks among young people as new data predict that rising rates of leading cancers, such as colon cancer, will overtake improvements