Influenza vaccine
Influenza Vaccine
The Influenza Vaccine (pronounced as /ˌɪn.fluˈen.zə ˈvæk.siːn/) is a yearly vaccine administered to protect against the highly variable influenza virus.
Etymology
The term "Influenza Vaccine" is derived from the Italian word 'influenza', meaning "influence", and the Latin word 'vaccinus', meaning "of or from the cow", as the first vaccines were derived from cowpox virus.
Definition
The Influenza Vaccine is a biological preparation that provides active acquired immunity to the influenza virus. It is typically given by injection either into the muscle or just under the skin.
Types
There are several types of influenza vaccines:
- Inactivated Influenza Vaccine (IIV): This vaccine is made from a killed virus.
- Live Attenuated Influenza Vaccine (LAIV): This vaccine is made from a live, weakened virus.
- Recombinant Influenza Vaccine (RIV): This vaccine is made from a piece of the virus's genetic material.
Effectiveness
The effectiveness of the Influenza Vaccine varies from year to year, depending on the match between the vaccine strain and the circulating influenza strains.
Side Effects
Common side effects of the Influenza Vaccine include soreness at the injection site, low-grade fever, and muscle aches. Serious side effects are rare.
Related Terms
External links
- Medical encyclopedia article on Influenza vaccine
- Wikipedia's article - Influenza vaccine
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