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  1. Jan 10, 2024 · Overview. Flu, also called influenza, is an infection of the nose, throat and lungs, which are part of the respiratory system. The flu is caused by a virus. Influenza is commonly called the flu, but it's different from the stomach "flu" viruses that cause diarrhea and vomiting.

  2. Jun 5, 2024 · Everything you need to know about flu viruses and flu illness, including symptoms, treatment and prevention.

  3. Oct 3, 2022 · Flu Symptoms. Flu can cause mild to severe illness, and at times can lead to death. Flu symptoms usually come on suddenly. People who have flu often feel some or all of these signs and symptoms: fever* or feeling feverish/chills. cough. sore throat. runny or stuffy nose.

  4. The flu is an illness you get from the influenza virus. It causes symptoms like head and body aches, sore throat, fever and respiratory symptoms, which can be severe. Flu is most common in winter months, when many people can get sick at once (an epidemic).

  5. Mar 22, 2024 · What is Influenza (Flu)? Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.

  6. Feb 28, 2024 · The flu, also called influenza, is a respiratory infection caused by viruses. Each year, millions of Americans get sick with the flu. Sometimes it causes mild illness. But it can also be serious or even deadly, especially for people over 65, newborn babies, and people with certain chronic illnesses.

  7. Aug 28, 2023 · Asking if you have the flu? This WebMD slideshow helps you understand the flu virus, its symptoms, types of influenza, and flu treatments.

  8. Jun 5, 2024 · Seasonal influenza, or flu, is a highly contagious respiratory illness caused by influenza viruses that infect the nose, throat and lungs. The two main types of influenza viruses—types A and B—are the viruses that typically spread in people (human influenza viruses) and cause annual flu outbreaks.

  9. Jan 10, 2024 · During times when flu is widespread, you may not need to be tested for it. Your healthcare team may diagnose you based on your symptoms. In some cases, your healthcare professional may suggest that you be tested for influenza. There is a range of tests to diagnose flu.

  10. Dec 12, 2021 · Do you know how you might feel with the flu? Learn more about the common symptoms of flu in adults and what to expect.

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