Asthma and Flu

Articles On Flu Concerns

If you have asthma, you should do all you can to stay healthy. With asthma, any respiratory infection, including the flu, can affect your lungs, causing inflammation and airway narrowing.

About 5% to 20% of Americans get the flu each year. More than 200,000 people are hospitalized, according to the CDC. And since the 1970s, between 3,000 and 49,000 people have died from the flu each year. This is largely due to other infections and complications that can occur when you have the flu, particularly pneumonia.

People with lung problems, including those with asthma, are at higher risk of respiratory problems associated with flu. A flu vaccine is the best way to prevent the flu and subsequent respiratory problems associated with it, including a worsening of asthma symptoms.

What Are the Symptoms of the Flu and Asthma?

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Call your doctor if you experience flu or asthma attack symptoms, including:

  • Increased shortness of breath or wheezing
  • Coughing up increased amounts of mucus
  • Yellow- or green-colored mucus
  • Fever (temperature over 101 degrees Fahrenheit) or chills
  • Extreme tiredness or generalized muscle aches
  • Sore throat, scratchy throat, or pain when swallowing
  • Sinus drainage, nasal congestion, headache, or tenderness along your upper cheekbones

Call 911 if you are having trouble breathing.

What Should I Do if I Have Asthma and Get the Flu?

If you have symptoms of flu, call your doctor immediately for advice on how to prevent your asthma symptoms from worsening. Your doctor may prescribe an antiviral medicine to help reduce your flu symptoms and make changes to your asthma action plan.

Make sure you follow the instructions in your written asthma action plan to self-manage asthma and keep asthma symptoms controlled. In addition, continue to check your peak flow rate to make sure your breathing is in the safe zone.

How Can I Prevent Infections That Trigger Asthma?

There are steps you can take to help prevent infections that can trigger asthma symptoms:

  • Wash your hands. Good hygiene can decrease your chance of viral infections such as the flu. Remember to wash your hands frequently throughout the day to get rid of germs that linger on your hands.
  • Get a flu shot. Check with your health care provider about receiving a flu shot every year. In addition, discuss the possibility of getting the pneumococcal pneumonia vaccine. Pneumococcus is a common cause of bacterial pneumonia, an illness that can be particularly serious in a person with asthma.
  • Prevent sinusitis. Be aware of the symptoms of a sinus infection and report them immediately to your doctor to help prevent asthma attacks.
  • Don't share asthma medication or equipment. Do not let others use your asthma drugs or equipment, including your asthma inhaler, asthma nebulizer, and nebulizer tubing and mouthpiece.

What Types of Flu Vaccines Are Available?

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Two types of flu vaccine exist - a shot and a nasal spray.

Flu shots don't contain a live virus and cannot cause the flu. The nasal flu vaccine, called FluMist, contains weakened flu viruses, and does not cause flu. People with asthma should receive the flu shot vaccine, not FluMist.

Other options include:

  • Intradermal shots use smaller needles that only go into the top layer of the skin instead of the muscle. They are available for those ages 18 to 64.
  • Egg- free vaccines are now available for those ages 18 to 49 who have severe egg allergies.
  • High-dose vaccines are meant for those age 65 and older and may better protect them from the flu.

How Do Flu Vaccines Work in People With Asthma?

Flu vaccines work the same way for everyone, including those with asthma. They cause antibodies to develop in your body. These antibodies provide protection against infection from the flu. This antibody reaction may cause fatigue and muscle aches in some people.

Each year, the flu vaccine contains several different kinds of flu viruses. The strains chosen are the ones that researchers think are most likely to show up that year. If the choice is right, the flu vaccine is about 60% effective in preventing the flu. However, the vaccine is less effective in older people and those with a weakened immune system.

Who Should Get the Flu Vaccine?

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The CDC recommends that everyone ages 6 months and older be vaccinated each year against the flu. There are several groups in whom the flu vaccine is particularly important. These people are either at a higher risk for complications from the flu themselves, or are around people who are at high risk for flu complications. These include:

  • Women who are pregnant
  • Children under age 5 -- especially those under age 2
  • Adults ages 50 and older
  • Adults and children with chronic health conditions, including asthma and other conditions that depress the immune system”
  • Caregivers to those at risk for flu-related complications, including health care workers and caregivers to very young children
  • Older people who live in nursing homes and other long-term care facilities

Where Do You Get the Flu Vaccine?

The American Lung Association (ALA) offers an electronic flu vaccine clinic locator. Visit its web site, enter a zip code and a date (or dates), and receive information about clinics scheduled in your area. You can also check with your pharmacist. Most retail pharmacies offer flu shots.

If you or your loved one has asthma, talk to your doctor about getting a flu vaccine.

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