In these two Asian nations, as well as Iran and Iran, the first outbreaks of highly pathogenic avian influenza in poultry ...

Swine-origin influenza viruses show mutations that resist antiviral drugs, posing a pandemic risk and highlighting the urgent need for ongoing surveillance and updated treatment strategies. Study: ...

Evidence suggests that the global swine flu pandemic of 2009 began in central Mexico, according to research supported by the National Institute of Allergy and Infectious Diseases of the National ...

School closures and hospitalizations from an unexpected early spike in flu cases in Japan has experts concerned about what ...

In 1918, a strain of influenza known as Spanish flu caused a global pandemic, spreading rapidly and killing indiscriminately.

You may have heard the term H3N2 in the news or read about it online. But chances are you don't know much about what it is and how it's different from other types of flu. Adults who were around in ...

The 1918-19 influenza pandemic infected 500 million people worldwide and killed an estimated 20 million to 50 million. Some estimates go as high as 100 million, including some 675,000 Americans. About ...

Editor's Note, March 17, 2020: This is an updated version of a story that originally ran on Jan. 11, 2018. Pandemic: It’s a scary word. But the world has seen pandemics before, and worse ones, too.