Influenza pandemic Swine influenza Hong Kong flu Canine influenza 2017–2018 United States flu season Discovery and development of neuraminidase inhibitors Equine influenza 2009 swine flu pandemic by country 2009 swine flu pandemic in Australia 2009 swine flu pandemic in Japan Influenza Treatment of influenza Amantadine Influenza A virus subtype H5N1 Influenza vaccine 2009 swine flu pandemic Baloxavir marboxil Spanish flu 1957–1958 influenza pandemic 2009 swine flu pandemic in Malaysia 2009 swine flu pandemic in the United States Urumin Avian influenza 2023 in the United Kingdom Global spread of H5N1