The flu is a respiratory (i.e., nose, throat and lung) infection that can be caused by a variety of influenza viruses. Many people use the word "flu" when they actually have a cold. Although the common cold is also caused by viruses, the flu and common cold differ in several ways. Can you tell the difference? Test your knowledge!
Is it true that antibiotics can cure colds & flus? Are all over-the counter cold medicines the same? Learn the truth and tackle your symptoms right away.