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Target intelligence / Profile preview
Influenza A Virus (H1N1) (H1N1)
- Target
- H1N1
- Molecular classification
- Virus, RNA Virus, Orthomyxoviridae, Influenzavirus A
01
Overview
Influenza A virus subtype H1N1 (A/H1N1) is a subtype of the influenza A virus, an RNA virus known for causing acute respiratory infections in humans and animals. Its viral envelope contains hemagglutinin (H1) and neuraminidase (N1) which are critical for viral entry and release. H1N1 has been responsible for several major flu pandemics, most notably the 1918 Spanish flu and the 2009 swine flu pandemic. Transmission occurs via respiratory droplets. Prevention strategies include annual vaccination based on WHO surveillance data. Antiviral medications such as oseltamivir may be used for treatment but resistance can develop.
- Other names
- A/H1N1Swine Flu Virus (H1N1)Spanish Flu Virus (H1N1)A(H1N1)pdm09
02
Mechanism of action
Oseltamivir inhibits neuraminidase, preventing the release of new virions from infected cells. Vaccines induce an antibody response targeting hemagglutinin and neuraminidase.
03
Biological functions
Replication within host cellsInduction of immune responseTransmission via respiratory droplets
04
Disease associations
InfluenzaPandemicRespiratory InfectionPneumonia
05
Safety considerations
Antiviral resistance (e.g., H274Y mutation)Vaccine efficacy varies due to antigenic drift and shiftPotential for severe complications (pneumonia, respiratory failure)
06
Interacting drugs
Oseltamivir
1 more in the full profile.
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