Influenza A Virus (H3n2) Vaccine
Influenza A Virus (H3N2) Antigen is a biological preparation containing specific viral proteins used primarily for diagnostic testing to detect influenza A infections, particularly the H3N2 subtype. It may also be utilized in vaccine development and manufacturing processes.
An antigen preparation used for detecting or preventing Influenza A (H3N2) infections.
Key facts at a glance
- RxNorm
- 1657131
- Generic
- Influenza A Virus (H3n2) Antigen
- Class
- unclassified
- Brands
- Flulaval Quadrivalent 2022-2023, Fluarix Quadrivalent 2022-2023, Fluzone Quadrivalent 2022-2023, Fluad Quadrivalent 2022-2023, Afluria Quadrivalent 2022-2023, Flublok Quadrivalent 2022-2023, Flucelvax Quadrivalent 2022-2023, FluMist Quadrivalent 2022-2023, FluMist Quadrivalent 2023-2024, Fluad Quadrivalent 2023-2024, Flulaval Quadrivalent 2023-2024, Afluria Quadrivalent 2023-2024, Flucelvax Quadrivalent 2023-2024, Fluzone Quadrivalent 2023-2024, Fluarix Quadrivalent 2023-2024
- Availability
- rx
- Lactation
- unknown
- Routes
- nasal
- Forms
- prefilled syringe, injection, spray, suspension
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Used in diagnostic immunoassays (such as rapid influenza tests) to detect active Influenza A virus infections, particularly the H3N2 subtype which is a common cause of seasonal flu. May also be used in vaccine production or serological testing.
Contains specific viral surface antigens (such as hemagglutinin and neuraminidase) that can bind to patient antibodies or detection reagents, allowing identification of influenza A exposure or infection through immunoassay methods.
This is a laboratory/diagnostic reagent rather than a therapeutic medication. For treatment of influenza infection, antiviral medications should be consulted. Vaccine-related use requires appropriate manufacturing standards. Diagnostic use should follow proper specimen collection and testing protocols.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 29, 2026. · Read our editorial policy