Flu

What is the flu?

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.

What causes the flu?

The flu is caused by flu viruses that spread from person to person. When someone with the flu coughs, sneezes, or talks, they spray tiny droplets. These droplets can land in the mouths or noses of people who are nearby. Less often, a person may get flu by touching a surface or object that has flu virus on it and then touching their own mouth, nose, or possibly their eyes.

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Results 1 - 10 of 1,999 for Influenza
  1. Flu (National Library of Medicine)  
    What is the flu? The flu, also called influenza, is a respiratory infection caused by viruses. Each year, millions of Americans get sick with the flu. Sometimes ...
  2. Bird Flu (National Library of Medicine)  
    Birds, just like people, get the flu. Bird flu viruses infect birds, including chickens, other poultry, and wild birds such as ducks. Usually bird flu viruses only infect other ...
  3. H1N1 Flu (Swine Flu) (National Library of Medicine)  
    Swine flu is an infection caused by a virus. It's named for a virus that pigs can get. People do not normally get swine flu, but human infections can and do happen. In ...
  4. Flu Shot (National Library of Medicine)  
    Flu is a respiratory infection caused by a number of viruses. Most people with the flu get better on their own. But it can ... cause complications and sometimes even death. Getting the flu vaccine every year is the best way to ...
  5. Flu (Influenza) Test What is a flu (influenza) test? Influenza, known as the flu , is a respiratory infection caused by a virus . The flu virus usually spreads from person ...
  6. Gastroenteritis (National Library of Medicine)  
    Have you ever had the "stomach flu?" What you probably had was gastroenteritis - not a type of flu at all. Gastroenteritis is an inflammation of the lining of the ...
  7. Flu 
    The flu is an infection of the nose, throat, and lungs. It spreads easily. This article discusses influenza types A and B. Another type of the ...
  8. ... Nasal congestion Sneezing Sore throat Cough Headache The flu is an infection of the nose, throat, and lungs caused by the influenza virus. Below are some questions you may want ...
  9. ... Nasal congestion Runny nose Sneezing Sore throat The flu is an infection of the nose, throat, and lungs caused by the influenza virus. Many flu symptoms are similar to those ...
  10. The H1N1 virus (swine flu) is an infection of the nose, throat, and lungs. It is caused by the H1N1 influenza virus. ... The H1N1 virus is now considered a regular flu virus. It is one of the three viruses ...
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