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Live attenuated influenza vaccine (LAIV) is a type of influenza vaccine in the form of a nasal spray that is recommended for the prevention of influenza. [ 2 ] [ 7 ] It is an attenuated live vaccine, unlike other influenza vaccines, which are inactivated vaccines .
What is the at-home nasal flu vaccine? FluMist is a quadrivalent live attenuated influenza vaccine (LAIV) administered as a nasal spray, says Ravi Jhaveri, M.D., division head and professor in ...
For example, people between ages 2 and 17 who are taking aspirin shouldn’t take FluMist or other live-attenuated vaccines because the combination has been linked to greater risks of a rare but ...
The exact efficacy varies by year, but data from the Centers for Disease Control and Prevention (CDC) show that for all flu vaccines (meaning nasal and the shot) the 2023-2024 flu vaccine was 42% ...
For example, the live attenuated influenza vaccine is given nasally and is associated with nasal congestion. [25] Compared to inactivated vaccines, live-attenuated vaccines are more prone to immunization errors as they must be kept under strict conditions during the cold chain and carefully prepared (e.g., during reconstitution). [3] [22] [23]
The inactivated vaccine and the live attenuated virus vaccine are the two major types of vaccines authorised currently. The inactivated vaccine includes a strand of killed pathogen inside the vaccine while a weakened form of virus is included inside the live attenuated vaccine. [21] They both aim to trigger the active immune response inside our ...
The FluMist vaccine is a live attenuated vaccine (meaning, it’s a weakened form of the virus) and it’s approved for use in healthy, non-pregnant people ages 2 through 49. How effective is the ...
a nasal spray of live attenuated influenza vaccine, which contains the live but attenuated (weakened) form of the virus. Injected vaccines induce protection based on an immune response to the antigens present on the inactivated virus, while the nasal spray works by establishing short-term infection in the nasal passages. [173]