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A semi-logarithmic chart of laboratory-confirmed A(H1N1) influenza cases by date according to WHO reports. [196] Mexico, USA, and Canada are shown as a breakdown of the total. In the United States, initial reports of atypical flu in two individuals in southern California led to the discovery of the virus by the Center for Disease Control in mid ...
The 2009 flu pandemic in Asia, part of an epidemic in 2009 of a new strain of influenza A virus subtype H1N1 causing what has been commonly called swine flu, afflicted at least 394,133 people in Asia with 2,137 confirmed deaths: there were 1,035 deaths confirmed in India, 737 deaths in China, 415 deaths in Turkey, 192 deaths in Thailand, and 170 deaths in South Korea.
The 2009 swine flu pandemic, caused by the H1N1/swine flu/influenza virus and declared by the World Health Organization (WHO) from June 2009 to August 2010, was the third recent flu pandemic involving the H1N1 virus (the first being the 1918–1920 Spanish flu pandemic and the second being the 1977 Russian flu ). [ 12][ 13] The first identified ...
Spanish flu (1918–1920) The 1918 flu pandemic, commonly referred to as the Spanish flu, was a category 5 influenza pandemic caused by an unusually severe and deadly Influenza A virus strain of subtype H1N1 . The difference between the influenza mortality age-distributions of the 1918 epidemic and normal epidemics.
The pandemic H1N1/09 virus is a swine origin influenza A virus subtype H1N1 strain that was responsible for the 2009 swine flu pandemic. This strain is often called swine flu by the public media due to the prevailing belief that it originated in pigs. The virus is believed to have originated around September 2008 in central Mexico.
Influenza A virus subtype H1N1 ( A/H1N1) is a subtype of influenza A virus (IAV). Some human-adapted strains of H1N1 are endemic in humans and are one cause of seasonal influenza (flu). [ 1] Other strains of H1N1 are endemic in pigs ( swine influenza) and in birds ( avian influenza ). [ 2] Subtypes of IAV are defined by the combination of the ...
2009 swine flu pandemic timeline. Community outbreaks, June 2009. Confirmed cases by U.S. state, June 3, 2009. This article covers the chronology of the 2009 novel influenza A ( H1N1) pandemic. [1] Flag icons denote the first announcements of confirmed cases by the respective nation-states, their first deaths (and other major events such as ...
Swine influenza is an infection caused by any of several types of swine influenza viruses. Swine influenza virus ( SIV) or swine-origin influenza virus ( S-OIV) refers to any strain of the influenza family of viruses that is endemic in pigs. [ 2] As of 2009, identified SIV strains include influenza C and the subtypes of influenza A known as ...