Influenza A virus subtype H2N3

Influenza A virus subtype H2N3 is a subtype of the Influenza A virus that has been identified in ducks and chickens. This subtype is not known to infect humans, but it is considered a potential source of new influenza pandemics.

History

The H2N3 subtype was first identified in ducks in the 1950s. Since then, it has been found in a variety of avian species, including chickens. The virus is typically found in wild birds, but it can also be found in domesticated birds.

Structure and Function

Like all influenza A viruses, H2N3 is an Orthomyxovirus, a family of RNA viruses. The "H2" and "N3" in the subtype's name refer to the virus's hemagglutinin and neuraminidase proteins, respectively. These proteins play a crucial role in the virus's ability to infect cells and are the primary targets of the immune response.

Potential for Pandemic

While H2N3 is not currently known to infect humans, it is considered a potential source of future influenza pandemics. This is because the virus has the ability to antigenically shift, or change its surface proteins, which could potentially allow it to infect humans.

Prevention and Control

Prevention and control of H2N3 in birds involves biosecurity measures, such as preventing contact between wild and domesticated birds, and vaccination. There is currently no vaccine for H2N3 in humans, as the virus is not known to infect humans.

See Also

• Influenza A virus
• Influenza pandemic
• Orthomyxovirus
• Hemagglutinin
• Neuraminidase
• Antigenic shift
• Biosecurity
• Vaccination