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Flu
Influenza Symptoms, Protection, and What to Do If You Get Sick
Also available in: Spanish
Influenza (commonly called the “flu”) is a contagious respiratory illness caused by influenza viruses. This fact sheet describes common flu symptoms, protection against the flu, and what to do if some... Details >
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
Influenza Viruses
This fact sheet discusses the three types of influenza viruses, human influenza viruses versus avian influenza viruses, and the two types of influenza viruses change.... Details >
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
Influenza: The Disease
This fact sheet provides background information about influenza, including symptoms, transmission mode, and treatment.... Details >
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
Is It a Cold or the Flu?
Also available in: Spanish
A checklist of symptoms designed to assist you in determining which of these health problems you may have.... Details >
National Institute of Allergy and Infectious Diseases, National Institutes of Health
National Strategy for Pandemic Influenza (Flu)
This document outlines the Nation's strategy to detect influenza outbreaks, expand domestic vaccine production capacity, stockpile treatments, prepare to respond to pandemic flu, and ensure the health... Details >
Seasonal Flu
This page from the Centers for Disease Control and Prevention provides information and updates about the flu and flu vaccines. ... Details >
Seasonal Influenza: Questions and Answers
This fact sheet provides answers to questions about influenza (flu). Questions covered include flu symptoms, flu season, and flu immunity.... Details >
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
Self-Care Flow Charts: Cold and Flu 
Learn how to treat the symptoms of a cold or flu and when flu- or cold-like symptoms could indicate the need to seek professional help.... Details >
Snort. Sniffle. Sneeze. No Antibiotics Please!
Are you aware that colds, flu, and most sore throats and bronchitis are caused by viruses? Did you know that antibiotics do not help fight viruses? It’s true. Plus, taking antibiotics when you have a ... Details >
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services