Influenza A virus subtype H3N1
Influenza A virus subtype H3N1 is a subtype of viruses that causes influenza (flu). H3N1 viruses can infect birds and mammals. In birds, they are highly pathogenic avian influenza viruses. In humans, they are seasonal influenza viruses.
History
The H3N1 subtype was first identified in humans in 1989. Since then, it has been detected in various parts of the world, including North America, Europe, and Asia. The virus is thought to have originated from a reassortment of H3N2 and H1N1 viruses.
Structure and Function
Like all Influenza A viruses, H3N1 is an orthomyxovirus. It has a segmented, negative-sense RNA genome. The H3N1 subtype is characterized by the hemagglutinin 3 (H3) and neuraminidase 1 (N1) antigens on its surface.
Pathogenesis
H3N1 viruses can cause severe disease in humans. The severity of the disease can vary depending on the individual's age, health status, and immune response. The virus is transmitted through respiratory droplets.
Prevention and Control
Vaccination is the most effective way to prevent H3N1 infection. Antiviral drugs can also be used to treat the infection. Surveillance and control measures are important to prevent the spread of the virus.
See Also
| Influenza | ||||||||||
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| Infectious diseases – viral systemic diseases | ||||||||||
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