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</div><div><span>Influenza Vaccine, Live Intranasal</span></div></div><span class="page-url print-only">URL of this page: https://medlineplus.gov/druginfo/meds/a607018.html</span><!-- Article --><article><div class="page-info"><div class="page-title"><a name="start" id="start">
</a><h1 class="with-also">Influenza Vaccine, Live Intranasal</h1>
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<noscript><span class="js-disabled-message">To use the sharing features on this page, please enable JavaScript.</span></noscript></div><div id="toc-box"><ul role="navigation" class="group"><li><a href="#app1">Why get vaccinated?
</a></li><li><a href="#app2">What is live, attenuated influenza vaccine-LAIV (nasal spray)?
</a></li><li><a href="#app3">Who should not get or should wait to get LAIV?
</a></li><li><a href="#app4">What are the risks from LAIV?
</a></li><li><a href="#app5">What if there is a serious reaction?
</a></li><li><a href="#app6">The National Vaccine Injury Compensation Program
</a></li><li><a href="#app7">How can I learn more?
</a></li><li><a href="#brand-name-1">Brand names</a>
</li></ul></div><section><div id="app1" class="section"><div class="section-header"><div class="section-title"><h2>Why get vaccinated?</h2></div><div class="section-button"><button type="submit" aria-controls="section-app1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-app1"><p>Influenza vaccine can prevent influenza (flu).</p><p>Flu is a contagious disease that spreads around the United States every year, usually between October and May. Anyone can get the flu, but it is more dangerous for some people. Infants and young children, people 65 years of age and older, pregnant women, and people with certain health conditions or a weakened immune system are at greatest risk of flu complications.</p><p>Pneumonia, bronchitis, sinus infections and ear infections are examples of flu-related complications. If you have a medical condition, such as heart disease, cancer or diabetes, flu can make it worse.</p><p>Flu can cause fever and chills, sore throat, muscle aches, fatigue, cough, headache, and runny or stuffy nose. Some people may have vomiting and diarrhea, though this is more common in children than adults.</p><p>Each year thousands of people in the United States die from flu, and many more are hospitalized. Flu vaccine prevents millions of illnesses and flu-related visits to the doctor each year.</p></div></div></section><section><div id="app2" class="section"><div class="section-header"><div class="section-title"><h2>What is live, attenuated influenza vaccine-LAIV (nasal spray)?</h2></div><div class="section-button"><button type="submit" aria-controls="section-app2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-app2"><p>CDC recommends everyone 6 months of age and older get vaccinated every flu season. Children 6 months through 8 years of age may need 2 doses during a single flu season. Everyone else needs only 1 dose each flu season.</p><p>Live, attenuated influenza vaccine (called LAIV) is a nasal spray vaccine that may be given to nonpregnant women 2 through 49 years of age.</p><p>It takes about 2 weeks for protection to develop after vaccination.</p><p>There are many flu viruses, and they are always changing. Each year a new flu vaccine is made to protect against three or four viruses that are likely to cause disease in the upcoming flu season. Even when the vaccine doesn't exactly match these viruses, it may still provide some protection.</p><p>Influenza vaccine does not cause flu.</p><p>Influenza vaccine may be given at the same time as other vaccines.</p></div></div></section><section><div id="app3" class="section"><div class="section-header"><div class="section-title"><h2>Who should not get or should wait to get LAIV?</h2></div><div class="section-button"><button type="submit" aria-controls="section-app3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-app3"><p>Tell the provider if the person getting the vaccine:</p><ul><li>Is younger than 2 years or older than 49 years of age.</li><li>Is pregnant. Live, attenuated influenza vaccine is not recommended for pregnant women.</li><li>Has had an allergic reaction after a previous dose of influenza vaccine, or has any severe, life-threatening allergies.</li><li>Is a child or adolescent 2 through 17 years of age who is receiving aspirin or aspirin- or salicylate-containing products.</li><li>Has a weakened immune system.</li><li>Is a child 2 through 4 years old who has asthma or a history of wheezing in the past 12 months.</li><li>Has taken influenza antiviral medication in the last 3 weeks.</li><li>Cares for severely immunocompromised persons who require a protected environment.</li><li>Is 5 years or older and has asthma.</li><li>Has other underlying medical conditions that can put people at higher risk of serious flu complications (such as lung disease, heart disease, kidney disease, kidney or liver disorders, neurologic or neuromuscular or metabolic disorders).</li><li>Does not have a spleen, or has a non-functioning spleen.</li><li>Has a cochlear implant.</li><li>Has a cerebrospinal fluid leak (a leak of the fluid that surrounds the brain to the nose, throat, ear, or some other location in the head).</li><li>Has had Guillain-Barré Syndrome within 6 weeks after a previous dose of influenza vaccine.</li></ul><p>In some cases, your health care provider may decide to postpone influenza vaccination to a future visit.</p><p>For some patients, a different type of influenza vaccine (inactivated or recombinant influenza vaccine) might be more appropriate than live, attenuated influenza vaccine.</p><p>People with minor illnesses, such as a cold, may be vaccinated. People who are moderately or severely ill should usually wait until they recover before getting influenza vaccine.</p><p>Your health care provider can give you more information.</p></div></div></section><section><div id="app4" class="section"><div class="section-header"><div class="section-title"><h2>What are the risks from LAIV?</h2></div><div class="section-button"><button type="submit" aria-controls="section-app4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-app4"><ul><li>Runny nose or nasal congestion, wheezing and headache can happen after LAIV vaccination.</li><li>Vomiting, muscle aches, fever, sore throat and cough are other possible side effects.</li></ul><p>If these problems occur, they usually begin soon after vaccination and are mild and short-lived.</p><p>As with any medicine, there is a very remote chance of a vaccine causing a severe allergic reaction, other serious injury, or death.</p></div></div></section><section><div id="app5" class="section"><div class="section-header"><div class="section-title"><h2>What if there is a serious reaction?</h2></div><div class="section-button"><button type="submit" aria-controls="section-app5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-app5"><p>An allergic reaction could occur after the vaccinated person leaves the clinic. If you see signs of a severe allergic reaction (hives, swelling of the face and throat, difficulty breathing, a fast heartbeat, dizziness, or weakness), call 9-1-1 and get the person to the nearest hospital.</p><p>For other signs that concern you, call your health care provider.</p><p>Adverse reactions should be reported to the Vaccine Adverse Event Reporting System (VAERS). Your health care provider will usually file this report, or you can do it yourself. Visit the VAERS website at <a target="_blank" href="http://www.vaers.hhs.gov">http://www.vaers.hhs.gov</a> or call <a href="tel:1-800-822-7967">1-800-822-7967</a>. <em>VAERS is only for reporting reactions, and VAERS staff members do not give medical advice.</em></p></div></div></section><section><div id="app6" class="section"><div class="section-header"><div class="section-title"><h2>The National Vaccine Injury Compensation Program</h2></div><div class="section-button"><button type="submit" aria-controls="section-app6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-app6"><p>The National Vaccine Injury Compensation Program (VICP) is a federal program that was created to compensate people who may have been injured by certain vaccines. Claims regarding alleged injury or death due to vaccination have a time limit for filing, which may be as short as two years. Visit the VICP website at <a target="_blank" href="http://www.hrsa.gov/vaccinecompensation">http://www.hrsa.gov/vaccinecompensation</a> or call <a href="tel:1-800-338-2382">1-800-338-2382</a> to learn about the program and about filing a claim.</p></div></div></section><section><div id="app7" class="section"><div class="section-header"><div class="section-title"><h2>How can I learn more?</h2></div><div class="section-button"><button type="submit" aria-controls="section-app7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-app7"><ul><li>Ask your healthcare provider.</li><li>Call your local or state health department.</li><li>Visit the website of the Food and Drug Administration (FDA) for vaccine package inserts and additional information at www.fda.gov/vaccines-blood-biologics/vaccines.</li><li>Contact the Centers for Disease Control and Prevention (CDC): Call <a href="tel:1-800-232-4636">1-800-232-4636</a> (<a href="tel:1-800-CDC-INFO">1-800-CDC-INFO</a>) or visit CDC's website at <a target="_blank" href="https://www.cdc.gov/flu">https://www.cdc.gov/flu</a></li></ul><p><em>Live Attenuated Influenza Vaccine Information Statement. U.S. Department of Health and Human Services/Centers for Disease Control and Prevention National Immunization Program. 8/6/2021.</em></p></div></div></section><section><div id="brand-name-1" class="section"><div class="section-header"><div class="section-title"><h2>Brand names</h2></div><div class="section-button"><button type="submit" aria-controls="section-brandname-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-brandname-1"><ul><li>FluMist<sup>®</sup></li></ul></div></div></section><span>Last Revised - </span><span>09/15/2021</span>
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