Dear A.T.R.: Both colds and influenza (the "flu") are respiratory illnesses that are caused by viruses. Influenza is caused ...

Medically reviewed by Anju Goel, MD Influenza B causes seasonal flu and is highly contagious, similar to influenza A. Make sure you stay hydrated and get plenty of rest to help your body fight off ...

(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the Centers for Disease Control and Prevention since the start of ...

Japan’s health authorities have declared an influenza epidemic, with thousands of people infected with the respiratory virus.