U.S. Health Secretary Robert F. Kennedy Jr.’s new vaccine advisory committee endorsed fall flu vaccination Thursday for just ...

The effective removal of thimerosal from influenza vaccines would have limited impact, but it illustrates how the ...

Long Island’s last commercial duck farm is rebuilding after a bird flu outbreak forced the destruction of its entire ...

Learn interesting facts about the flu, a viral infection that targets the respiratory system. ... Credit: CAVALLINI JAMES/BSIP/Universal Images Group via Getty Images.

Flu facts Flu FAQ Glossary Flu pictures Discover more The flu is a contagious viral infection of the respiratory system that affects the nose, throat and lungs. It is caused by influenza viruses.

Bird flu pops up every year in the same way that flu season does for humans. Each time there's a different strain as mutations mix in and around wild and domestic animals. Animals, of course, get ...

PATRICK T. FALLON/AFP via Getty Images There have been no cases that have resulted from human-to-human transmission thus far. However, there is concern that H5N1 bird flu could soon mutate and ...

Bird flu is one of the reasons egg prices have skyrocketed. Here’s what else you should know about the current outbreak of the H5N1 virus among U.S. poultry and dairy cows.

Editor's note: This is a developing story and will be updated as new information emerges. An unidentified, flu-like illness has killed dozens of people in the Democratic Republic of the Congo (DRC ...

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The flu ward at Walter Reed Hospital in Bethesda, Maryland, circa World War I. | Heritage Images/GettyImages. The so-called Spanish Flu killed between 40 million and 100 million people worldwide ...