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The influenza A virus subtype H1N1 (initially known as swine influenza virus or as new flu, and also locally known as gripe A, gripe porcina, and influenza porcina) arrived in Argentina in late April 2009, through air traffic contact with endemic areas, especially Mexico and the United States.
On 19 June, the total number of confirmed cases was 131, [17] being 55 in São Paulo, 26 in Santa Catarina, 19 in Minas Gerais, 15 in Rio de Janeiro, 4 in Tocantins, 3 in Distrito Federal, 2 in Espírito Santo, 2 in Goiás, 2 in Mato Grosso, 1 in Bahia, 1 in Rio Grande do Norte and 1 in Rio Grande do Sul.
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).
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]
Community outbreaks, June 2009 Confirmed cases by U.S. state, June 3, 2009. This article covers the chronology of the 2009 novel influenza A 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 their first intergenerational cases, cases of zoonosis, and the start of national vaccination ...
A/Rio de Janeiro/62434/2021 (H3N2). [28] The starting A indicates that the virus is an influenza A virus. Rio de Janeiro indicates the place of collection. 62434 is a laboratory sequence number. 2021 (or just 21) indicates that the sample was collected in 2021. No species is mentioned so by default, the sample was collected from a human.
The global spread of H5N1 influenza in birds is considered a significant pandemic threat. While other H5N1 influenza strains are known, they are significantly different on a genetic level from a highly pathogenic, emergent strain of H5N1, which was able to achieve hitherto unprecedented global spread in 2008. [1]
Avian influenza, also known as avian flu or bird flu, is a disease caused by the influenza A virus, which primarily affects birds but can sometimes affect mammals including humans. [1]