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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 H1N1 , H1N2 , H2N1, H3N1 , H3N2 , and H2N3 .
- 2009 swine flu pandemic - Wikipedia
The 2009 swine flu pandemic, caused by the H1N1/swine...
- Influenza pandemic - Wikipedia
There have been six major influenza epidemics in the last...
- 2009 swine flu pandemic - Wikipedia
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).
There have been six major influenza epidemics in the last 140 years, with the 1918 flu pandemic being the most severe; this is estimated to have been responsible for the deaths of 50–100 million people. The 2009 swine flu pandemic resulted in under 300,000 deaths and is considered relatively mild.
A level 5 pandemic alert indicated that WHO believed a swine flu pandemic was imminent and called for accelerated distribution of drugs to treatment facilities and rapid implementation of measures to control viral spread as much as possible.
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).
Overview. Before the H1N1 pandemic in 2009, the influenza A (H1N1) virus had never been identified as a cause of infections in people. Genetic analyses of this virus have shown that it originated from animal influenza viruses and is unrelated to the human seasonal H1N1 viruses that have been in general circulation among people since 1977.
11 Ιουν 2009 · Origins of the swine flu pandemic. By Ed Yong. June 11, 2009. • 7 min read. In the time since the words “swine flu” first dominated the headlines, a group of scientists from three...