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Influenza in Animals
Influenza A viruses are found in many different animals, including ducks, chickens, pigs, whales, horses, seals, and cats.
Swine Flu
Swine influenza is a respiratory disease of pigs caused by type A influenza viruses that regularly cause outbreaks of influenza in pigs.
Variant Flu
Influenza viruses that normally circulate in pigs are called “variant” viruses when they are found in people.
Pandemic Flu
An influenza pandemic can occur when a non-human (novel) influenza virus gains the ability for efficient and sustained human-to-human transmission and then spreads globally.
Additional Resources
Nonpharmaceutical Interventions (NPIs)
Information about actions, apart from getting vaccinated or taking medicine, that people and communities can take to help slow the spread of illnesses like influenza (flu). NPIs are also known as community mitigation strategies.
- Page last reviewed: October 3, 2017
- Page last updated: October 3, 2017
- Content source:
- Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases (NCIRD)
- Page maintained by: Office of the Associate Director for Communication, Digital Media Branch, Division of Public Affairs