Skip to content
My WebMD Sign In, Sign Up

Asthma Health Center

Select An Article
Font Size

Asthma and Flu


What Types of Flu Vaccines Are Available? continued...

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. The nasal flu vaccine is recommended only for healthy individuals 2 to 49 years of age who have no chronic medical problems and are not pregnant. 

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 aged 18 to 64.
  • Egg-free vaccines are now available for those aged 18 to 49 who have severe egg allergies.
  • High-dose vaccines are meant for the elderly 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% to 70% 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?

The CDC recommends that everyone 6 months of age 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 the age of 5 -- especially those under 2 years old
  • Adults 50 years of age and older
  • Adults and children with chronic health conditions including asthma
  • 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


When Should People With Asthma Get the Flu Vaccine?

Flu season may begin as early as October and run through May. If you have asthma, the best time to get a flu vaccine is October or November, but getting vaccinated in December or later still can be beneficial. It takes about two weeks for the flu vaccine to become fully effective in preventing the flu.

Where Do You Get the Flu Vaccine?

The American Lung Association (ALA) offers an electronic flu vaccine clinic locator. Visit their web site, enter a zip code and a date (or dates), and receive information about clinics scheduled in your area.

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


WebMD Medical Reference

Reviewed by Melinda Ratini, DO, MS on June 08, 2012
Next Article:

When Is Your Asthma Worse?

When Is Your Asthma Worse?

Take the WebMD Asthma assessment to get Personalized Action Plan

Start Now

Today on WebMD

Distressed woman
Woman holding an asthma inhaler
Get Personalized Asthma Advice
Health Check
asthma overview
Los Angeles skyline in smog
man in a field with allergies
Woman holding inhaler
Slideshow Allergy Myths and Facts
Man outdoors coughing
Lung and bronchial tube graphic
10 Worst Asthma Cities