All content below is taken in its entirety from the CDC Live, Intranasal Influenza Vaccine Information Statement (VIS): http://www.cdc.gov/vaccines/hcp/vis/vis-statements/flulive.html
CDC review information for Live, Intranasal Influenza VIS:
Content source: National Center for Immunization and Respiratory Diseases
Influenza ("flu") is a contagious disease that spreads around the United States every winter, usually between October and May.
Flu is caused by the influenza virus, and can be spread by coughing, sneezing, and close contact.
Anyone can get flu, but the risk of getting flu is highest among children. Symptoms come on suddenly and may last several days. They can include:
Flu can make some people much sicker than others. These people include young children, people 65 and older, pregnant women, and people with certain health conditions -- such as heart, lung or kidney disease, or a weakened immune system. Flu vaccine is especially important for these people, and anyone in close contact with them.
Flu can also lead to pneumonia, and make existing medical conditions worse. It can cause diarrhea and seizures in children.
Each year thousands of people in the United States die from flu, and many more are hospitalized.
Flu vaccine is the best protection we have from flu and its complications. Flu vaccine also helps prevent spreading flu from person to person.
There are two types of influenza vaccine:
You are getting a live, attenuated influenza vaccine (called LAIV), which is sprayed into the nose. "Attenuated" means weakened. The viruses in the vaccine have been weakened so they can't make you sick.
A different vaccine, the "flu shot," is an inactivated vaccine (not containing live virus). It is given by injection with a needle. This vaccine is described in a separate Vaccine Information Statement.
Flu vaccine is recommended every year. Children 6 months through 8 years of age should get two doses the first year they get vaccinated.
Flu viruses are always changing. Each year's flu vaccine is made to protect from viruses that are most likely to cause disease that year. While flu vaccine cannot prevent all cases of flu, it is our best defense against the disease. LAIV protects against 4 different influenza viruses.
It takes about 2 weeks for protection to develop after the vaccination, and protection lasts several months to a year.
Some illnesses that are not caused by influenza virus are often mistaken for flu. Flu vaccine will not prevent these illnesses. It can only prevent influenza.
LAIV may be given to people 2 through 49 years of age, who are not pregnant. It may safely be given at the same time as other vaccines.
LAIV does not contain thimerosal or other preservatives.
Tell the person who gives you the vaccine:
The person giving you the vaccine can give you more information.
With a vaccine, like any medicine, there is a chance of side effects. These are usually mild and go away on their own.
Serious side effects are also possible, but are very rare. LAIV is made from weakened virus and does not cause flu.
Mild problems that have been reported following LAIV:
Children and adolescents 2-17 years of age:
Adults 18-49 years of age:
Severe problems that could follow LAIV:
The safety of vaccines is always being monitored. For more information, visit the vaccine safety website.
What should I look for?
Signs of a severe allergic reaction can include hives, swelling of the face and throat, difficulty breathing, a fast heartbeat, dizziness, and weakness. These would start a few minutes to a few hours after the vaccination.
What should I do?
VAERS is only for reporting reactions. They do not give medical advice.
The National Vaccine Injury Compensation Program (VICP) is a federal program created to compensate people who may have been injured by a vaccine, including flu vaccine.
Persons who believe they may have been injured by a vaccine can learn about the program and about filing a claim by calling 1-800-338-2382 or visiting the VICP website.
Vaccine information statement: Influenza vaccine (Flu vaccine, live, intranasal), 2013-2014. Centers for Disease Control and Prevention Web site. http://www.cdc.gov/vaccines/hcp/vis/vis-statements/flulive.pdf. Accessed March 5, 2014.
Updated by: David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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