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Other Flu Websites

Influenza A viruses are found in humans and many different animals, including ducks, chickens, pigs, whales, horses and seals.

  • 2009 H1N1 Influenza
    was a novel influenza A virus detected among people in the spring of 2009 and caused the first influenza pandemic in more than 40 years. This virus is now a regular human flu virus and continues to circulate seasonally worldwide.
  • Seasonal Flu
    is a contagious respiratory human illness caused by flu viruses that routinely spread in people. It can cause mild to severe illness, and at times can lead to death.
    provides one stop access to U.S. Government H1N1, avian and pandemic flu information.
  • Avian Flu
    usually refers to influenza A viruses found chiefly in birds, but infections can occur in humans.
  • Bat Flu
    is an infection in bats caused by a specific influenza A virus.
  • Canine Flu
    is a respiratory disease of dogs caused by a specific influenza A virus.
  • H3N2v
    is an influenza virus with genes from avian, swine and human viruses that normally occurs in swine but has infected humans. When a flu virus that normally spreads in pigs is found in people it is called a variant virus and is designated in the virus name with the letter “v”.
  • Swine Flu
    is a respiratory disease of pigs caused by type A influenza. When influenza viruses that normally spread in pigs are found in people, they are called “variant” viruses and designated with the letter “v” in the subtype nomenclature.
  • Pandemic Influenza Resources
    Resources to prepare for the next influenza pandemic.
  • 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.