Influenza

Humans and pigs could both serve as mixing vessels for a bird flu–seasonal flu hybrid, posing a risk of wider spread

If the influenza virus infecting cattle workers starts a pandemic, help in the form of a vaccine is months away

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

Clean indoor air protects against diseases such as COVID and flu, but we’re not doing enough to ensure it

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

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

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

Virologists say that the bird flu strain that is infecting cattle in the U.S. is unlikely to cause a pandemic in humans, but countries are gathering vaccines and stepping up surveillance just in case

Finland has decided to vaccinate farmworkers against bird flu—and experts say the U.S. should do the same

The first large trial of a COVID and flu vaccine combo suggests it boosts immune protection even more than single-target shots

The FDA has authorized just one type of avian flu test, and it is only available to livestock workers