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Use of the Nasal Spray Flu Vaccine
It should be noted that vaccination with the nasal-spray flu vaccine is always an option for healthy persons aged 5-49 years who are not pregnant. This vaccine is not subject to prioritization and can be given to healthy 5-49 year olds at any time.
People Displaced by Hurricane Katrina
Influenza vaccination is recommended for all people 6 months of age and older who have been displaced by hurricane Katrina and are living in crowded group settings. See http://www.bt.cdc.gov/disasters/hurricanes/katrina/vaccrecdisplaced.asp
Who Should Not Be Vaccinated
There are some people who should not be vaccinated without first consulting a physician. These include:
- People who have a severe allergy to chicken eggs.
- People who have had a severe reaction to an influenza vaccination in the past.
- People who developed Guillain-Barré syndrome (GBS) within 6 weeks of getting an influenza vaccine previously.
- Influenza vaccine is not approved for use in children less than 6 months of age.
- People who have a moderate or severe illness with a fever should wait to get vaccinated until their symptoms lessen.
Vaccine Effectiveness
The ability of flu vaccine to protect a person depends on the age and health status of the person getting the vaccine, and the similarity or "match" between the virus strains in the vaccine and those in circulation. Testing has shown that both the flu shot and the nasal-spray vaccine are effective at preventing the flu.
Vaccine Side Effects (What to Expect)
Different side effects can be associated with the flu shot and LAIV.
The flu shot: The viruses in the flu shot are killed (inactivated), so you cannot get the flu from a flu shot. Some minor side effects that could occur are:
- Soreness, redness, or swelling where the shot was given
- Fever (low grade)
- Aches
If these problems occur, they begin soon after the shot and usually last 1 to 2 days. Almost all people who receive influenza vaccine have no serious problems from it. However, on rare occasions, flu vaccination can cause serious problems, such as severe allergic reactions. As of July 1, 2005, people who think that they have been injured by the flu shot can file a claim for compensation from the National Vaccine Injury Compensation Program (VICP). For more information go to http://www.hrsa.gov/osp/vicp/.
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LAIV: The viruses in the nasal-spray vaccine are weakened and do not cause severe symptoms often associated with influenza illness. (In clinical studies, transmission of vaccine viruses to close contacts has occurred only rarely.)
In children, side effects from LAIV can include
- runny nose
- headache
- vomiting
- muscle aches
- fever
In adults, side effects from LAIV can include:
- runny nose
- headache
- sore throat
- cough
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