The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.

The flu virus is changing in ways never seen before, increasing infections and raising concerns about vaccine effectiveness ...

The influenza A virus genome consists of eight segments of single-stranded, negative-sense viral RNA, which encode multiple ...

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

Influenza B viruses, however, only circulate in humans ... remind your body how to react when you face new versions of the virus.” Public health officials recommend everyone six months and ...

There’s a mystery unfolding in the world of science: the disappearance of Influenza B/Yamagata. Since early 2020, researchers haven’t sequenced or isolated a single sample of this flu strain. Once a ...

Dr. Michael Reihart, with Penn State Health, also explained who's most at risk for severe illness and how effective this year's vaccine is.

British Columbia is seeing "peaking influenza activity" even as other respiratory illnesses such as RSV and COVID-19 are in ...

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

Flu activity continues to increase across Iowa, resulting in rising school absences and emergency room visits, as the country ...