In a striking real-world experiment, flu patients spent days indoors with healthy volunteers, but the virus never spread.

Among the most famous demonstrations of genetic mutations driving infection outcome is severe combined immunodeficiency (SCID ...

The United States reported a record number of measles cases in 2025, and the virus continues to spread rapidly in the new year. At least ​171 measles cases have been reported in the first two weeks of ...

An analysis of more than one million people in the UK found that two-thirds of people who were vaccine-hesitant during the ...

The virus is widely circulating in white-tailed deer. Until now, no humans are known to have been infected by deer.

"The UN estimates that by 2050, common bacterial infections could kill more people than cancer," says Arnold Mathijssen, a ...

Researchers reconstruct the spatial spread of pandemic respiratory viruses across metropolitan areas throughout the United ...

In a new study, we and an international team of scientists examined the behavior of marine viruses in a large band of ...

Nearly half a million Americans visit the emergency room (ER) each year with a fast-spreading stomach bug called norovirus.

Just like every other creature, bacteria have evolved creative ways of getting around. Sometimes this is easy, like swimming ...

On the ISS, viruses can still infect bacteria, but the process slows and pushes both organisms to evolve along different ...