Live attenuated influenza vaccine
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Live Attenuated Influenza Vaccine (LAIV) is a type of influenza vaccine in the form of a nasal spray that is used to protect against influenza. LAIV is one of the several types of influenza vaccines available.
Composition[edit | edit source]
LAIV is made from weakened strains of the influenza virus. Unlike the inactivated influenza vaccine, which is made from killed virus, the viruses in LAIV are alive but attenuated (weakened), and therefore cannot cause a full-blown case of the flu.
Administration[edit | edit source]
LAIV is administered by nasal spray rather than by injection. This makes it a needle-free option for vaccination, which can be particularly beneficial for children and individuals who have a fear of needles.
Efficacy[edit | edit source]
The efficacy of LAIV can vary from season to season and can also depend on the age and health status of the person receiving the vaccine. In general, studies have shown that LAIV can be effective at preventing influenza, particularly in children.
Side Effects[edit | edit source]
Like all vaccines, LAIV can cause side effects. These are generally mild and can include runny nose, headache, sore throat, and cough. In rare cases, more serious side effects can occur.
Contraindications[edit | edit source]
LAIV is not recommended for everyone. It is not recommended for children under the age of 2, adults over the age of 50, pregnant women, or individuals with certain health conditions.
See Also[edit | edit source]
| Live attenuated influenza vaccine Resources | |
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