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Flu 101

For some people the flu is more than unpleasant, it's downright dangerous. Get protected with a quick and simple vaccine.

Questions

1. What causes the flu?

2. How do you catch the flu?

3. Can it be serious?

4. How is it treated?

5. Can it be prevented?

6. Who should get a flu shot?

7. Can flu shots cause the flu?

8. When should I see a doctor?

9. Where can I go to learn more?

Answers

1. What causes the flu?

The flu, or influenza, is caused by a virus that infects the respiratory system. Though colds are also caused by viruses, the symptoms of the two illnesses have some differences. The flu is much more likely to be accompanied by fever, headache and extreme exhaustion.

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2. How do you catch the flu?

The flu can be passed from person to person through coughing and sneezing. The virus may also be picked up from contaminated surfaces, such as doorknobs or telephone receivers. If you touch a contaminated surface and then touch your nose or mouth, the virus can enter your body and infect you.

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3. Can it be serious?

The flu can send people to the hospital. In some cases it can be deadly, according to the Centers for Disease Control and Prevention (CDC). The flu can be especially serious among newborns, the elderly and people with ongoing health problems.

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4. How is it treated?

Most of the time, you just have to wait while your body fights off the virus. However, there are ways to lessen the severity of symptoms in the meantime. The CDC recommends that you:

  • Get plenty of rest.
  • Drink lots of liquids.
  • Take medicines, such as acetaminophen, to relieve aches, pains and fever.

There are also prescription medications that can help fight the flu, especially if you take them within two days of the beginning of the illness. Talk to your doctor for more information.

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5. Can it be prevented?

According to the American Academy of Family Physicians, you can do several things to avoid catching or spreading the flu, including these:

  • Eat well, exercise and get plenty of sleep to keep your immune system strong.
  • Wash your hands often to avoid spreading germs.
  • Cover your mouth and nose with a tissue or handkerchief when you cough or sneeze.
  • Use antibacterial disinfectant to regularly clean surfaces that may spread the infection.
  • Get a flu shot each year.

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6. Who should get a flu shot?

The CDC recommends that people ages 6 months and older receive the flu vaccine each year. Vaccination is especially important for people who are at high risk for serious flu complications. This includes:

  • Young children.
  • Pregnant women.
  • People with chronic health conditions like asthma, diabetes or heart and lung disease.
  • People 50 years and older.

Vaccination is also important for people who live with or care for anyone at high risk for serious flu complications.

If you have questions about whether or not to get a flu shot, talk to your doctor.

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7. Can flu shots cause the flu?

Flu shots do not cause the flu. This flu vaccine is made with killed viruses or just the protein needed for protection. However, you may experience mild side effects from the shot, including soreness where the shot is given, fever and fatigue. These effects should last just one or two days.

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8. When should I see a doctor?

Sometimes your symptoms are a sign of something more serious, such as a secondary infection. You should see a doctor if:

  • Your symptoms get worse or last a long time.
  • You start to feel better but then get worse with symptoms such as nausea, vomiting, high fever, chest pain, chills or a cough with thick, yellow-green mucus.

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9. Where can I go to learn more?

To learn more about flu, visit the Flu health topic center. You can also find out more at these websites:

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reviewed 5/28/2019

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