Influenza (Flu) Prevention – Nasal Spray

The nasal-spray flu vaccine is a vaccine made with live, weakened flu viruses that do not cause the flu (sometimes called LAIV for “Live Attenuated Influenza Vaccine”).

LAIV is approved for use in healthy people 5 years to 49 years of age who are not pregnant. 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