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H1N1 Influenza


What is H1N1 influenza?

H1N1 influenza (swine flu) is an infection caused by a virus. It is easily spread when an infected person coughs, sneezes, or has close contact with others. You may be able to spread H1N1 influenza to others for 1 week or longer after signs or symptoms appear.

What increases my risk for H1N1 influenza?

  • Living with or caring for someone who has H1N1 influenza
  • Living or working in a nursing home or long-term care facility
  • Living in close quarters with others
  • A condition such as diabetes, cancer, heart disease, or lung disease
  • Age older than 50 years
  • A weak immune system caused by HIV/AIDS, an organ transplant, pregnancy, or another condition
  • Travel to places where other people have H1N1 influenza

What are the signs and symptoms of H1N1 influenza?

  • Fever and chills
  • Headaches, body aches, and muscle or joint pain
  • Cough, runny nose, and sore throat
  • Vomiting and diarrhea
  • Fatigue or loss of appetite
  • Trouble breathing

How is H1N1 influenza diagnosed?

Your healthcare provider will examine you and ask if you have other health conditions. Tell him if you have traveled recently or been around sick people or animals. A sample of fluid from your nose or throat may show which germ is causing your illness.

How is H1N1 influenza treated?

Most people get better within a week. You may need any of the following:

  • Acetaminophen decreases pain and fever. It is available without a doctor's order. Ask how much to take and how often to take it. Follow directions. Acetaminophen can cause liver damage if not taken correctly.
  • NSAIDs , such as ibuprofen, help decrease swelling, pain, and fever. This medicine is available with or without a doctor's order. NSAIDs can cause stomach bleeding or kidney problems in certain people. If you take blood thinner medicine, always ask your healthcare provider if NSAIDs are safe for you. Always read the medicine label and follow directions.
  • Antivirals help fight a viral infection. This medicine works best when it is given within 48 hours after symptoms begin.

How can I manage my symptoms?

  • Rest as much as you can to help you recover.
  • Drink liquids as directed to help prevent dehydration. Ask how much liquid to drink each day and which liquids are best for you.

How can I help prevent the spread of H1N1 influenza?

  • Wash your hands often. Use soap and water. Wash your hands after you use the bathroom, change a child's diapers, or sneeze. Wash your hands before you prepare or eat food. Use gel hand cleanser when soap and water are not available. Do not touch your eyes, nose, or mouth unless you have washed your hands first.
  • Cover your mouth when you sneeze or cough. Cough into a tissue or the bend of your arm.
  • Clean shared items with a germ-killing cleaner. Clean table surfaces, doorknobs, and light switches. Do not share towels, silverware, and dishes with people who are sick. Wash bed sheets, towels, silverware, and dishes with soap and hot water.
  • Wear a mask over your mouth and nose to help prevent spreading the flu to others. Members of your household could also wear a mask to help protect themselves from getting the flu.
  • Stay away from others if you are sick.
  • Influenza vaccine helps prevent influenza (flu). Everyone 6 months or older should get a yearly influenza vaccine. Get the vaccine as soon as recommended each year, usually in September or October.

Call 911 for any of the following:

  • You have trouble breathing, and your lips look purple or blue.
  • You have a seizure.
  • You have new pain or pressure in your chest.

When should I seek immediate care?

  • You are dizzy, or you are urinating little or not at all.
  • You have a headache with a stiff neck, and you feel tired or confused.
  • Your symptoms worsen, or start to get better but then get worse.

When should I contact my healthcare provider?

  • You have new muscle pain or weakness.
  • You have questions or concerns about your condition or care.

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Ā© Copyright IBM Corporation 2020 Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. All illustrations and images included in CareNotesĀ® are the copyrighted property of A.D.A.M., Inc. or IBM Watson Health

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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