WHO will not declare that swine flu, or H1N1, has reached pandemic proportions. But it's leaving open the question for now of whether it will change its own definition of exactly what would ...

Using a traditional definition of health care-associated influenza missed more than 80% of possible cases among patients admitted to acute-care hospitals during seven influenza seasons ...

Avian Flu Could Define Trump’s Second Presidency The nation’s ability to respond to H5N1 is likely to be undercut by the incoming administration.

For a second time this season, at least 41 states are reporting high or very high levels of the flu. Here's how to stay safe.

Influenza Definition Influenza, often called the flu, is an acute, highly contagious infection of the respiratory tract which commonly occurs in the winter. Description Influenza usually appears ...

Flu-like symptoms can include fever, chills, fatigue, body aches, nausea, and headache. But many conditions beyond flu can cause them.

Medical terms related to the flu can be confusing. WebMD gives brief definitions for common terms you may hear from your doctor or friends.

What is the H3N2 flu? Read on to learn more about this strain of flu, including previous outbreaks, symptoms, treatment options, and prevention tips.

According to the Cambridge Dictionary, man flu is “an illness such as a cold that is not serious, but that the person who has it treats as more serious, usually when this person is a man ...

Avian influenza strain discovered in mammals, World Health Organization monitoring spread Multiple U.S. agencies said on Friday that for the first time, the rampant bird flu has spread to dairy ...