Influenza type B viruses are not classified by subtype and do not cause pandemics. Different strains of the flu virus mutate over time and replace the older strains. This is why it's important to ...

Influenza is spreading across Indiana and has been responsible for at least 32 deaths so far this season. Influenza, or "flu, ...

A subtype of bird flu caused by avian influenza A (H5) virus has been spreading worldwide in wild birds with a few outbreaks ...

Most of the bird flu cases reported so far in the U.S. have belonged to an influenza subtype known as HPAI H5N1. The newly ...

Spanish flu pandemic was caused by a particularly virulent strain of influenza virus. It infected 500 million people, caused ...

The findings come at a time when outbreaks of bird flu -- a different subtype of the ... Study Shows Drop in Use of Antiviral Medications in Young Children With Influenza Dec. 17, 2024 — Despite ...

In an abundance of caution, the CDC last week advised hospitals and labs to do faster flu testing to help identify possible ...

Here's what you need to know about the highly pathogenic H5N1 avian influenza, and what bird flu might mean to you, your ...