As cases of seasonal influenza surge, health officials are closely monitoring a growing threat—the potential fusion of human and bird flu strains.

Each year, flu experts from around the world gather to map out recommendations for next winter's flu vaccine. This year, it's ...

While we often refer to it as "the flu," the influenza virus has several strains. Here's what to know about the two most ...

A new study says the flu A viral strain can adapt shape to stay infectious. Infectious disease doctors break down what this ...

UC Davis researchers have found that acidification can kill H5N1 in waste milk, providing dairy farmers an affordable, ...