Avian influenza virus A

Definition

Avian Influenza Virus A is a subtype of the influenza virus that primarily infects birds but can also affect humans and other animals. It is known for causing severe respiratory disease and has pandemic potential.

5 Must Know Facts For Your Next Test

1. Avian Influenza Virus A is primarily transmitted through direct contact with infected birds or contaminated environments.
2. The virus can mutate rapidly, allowing it to cross species barriers and potentially infect humans.
3. There are multiple subtypes of Avian Influenza Virus A, including H5N1 and H7N9, which have caused human outbreaks.
4. Symptoms in humans can range from mild respiratory issues to severe pneumonia and even death.
5. Preventive measures include surveillance of bird populations, culling infected birds, and biosecurity practices in poultry farms.

Review Questions

• How is Avian Influenza Virus A primarily transmitted?
• What makes Avian Influenza Virus A capable of crossing species barriers?
• Name two subtypes of Avian Influenza Virus A that have caused human outbreaks.

Related terms

Zoonosis: Infectious diseases that can be transmitted from animals to humans.

Pandemic: A worldwide outbreak of a disease affecting a large number of people.

Biosecurity: Measures taken to prevent the introduction or spread of harmful organisms to animals or plants.