H1n1 origin 1918

The phylogenetic studies of all eight RNA gene segments of influenza A viruses may indicate that the 1918 pandemic strain originated from a H1N1 swine virus, which itself might be derived from a H1N1 avian precursor, which was separated from the bulk of other avian viruses in toto a long time ago.Especially remarkable was the 1918 flu’s predilection for taking the lives of otherwise healthy young adults, as opposed to children and the elderly, who usually suffer most. Some have called it the greatest pandemic in history. The 1918 flu pandemic has been a regular subject of speculation over the last century. Historians and scientists ... The 1918 "Spanish flu" pandemic was caused by a founder H1N1 influenza A virus. The three subsequent pandemics of 1957, 1968, and 2009 (black arrows) were caused by descendants of the 1918 virus, which acquired one or more genes through reassortment ( 12 ).Antigenic and genetic characteristics of swine-origin 2009 A(H1N1) influenza viruses circulating in humans. Science 325: 197-201 [Europe PMC free article] [Google Scholar] Gibbs MJ, Gibbs AJ 2006. Molecular virology: Was the 1918 pandemic caused by a bird flu? Nature 440: E8 doi: 10.1038/nature04823 [Google Scholar]1918. The "Spanish flu" epidemic of 1918 kills at least 50 million people worldwide. It is caused by an H1N1 virus which evolves directly from a bird flu into a human flu.. After a mild wave ...A study from Hokkaido University found a sequence homology between the Hemagglutinin antigen amino acid residues found in the earlier 1918 strain and the 2009 H1N1 strain. This may have played a role in individuals who had been infected with the 1918 strain and its early descendants in showing stronger specific immunity to the 2009 H1N1 virus.The ‘Spanish Flu’ pandemic of 1918 was one of the greatest medical disasters of the 20th century. This was a global pandemic, an airborne virus which affected every continent. It was nicknamed ‘Spanish flu’ as the first reported cases were in Spain. As this was during World War I, newspapers were censored (Germany, the United States ... The phylogenetic studies of all eight RNA gene segments of influenza A viruses may indicate that the 1918 pandemic strain originated from a H1N1 swine virus, which itself might be derived from a H1N1 avian precursor, which was separated from the bulk of other avian viruses in toto a long time ago.Swine flu (H1N1) "Swine flu" was the popular name for the virus which was responsible for a global flu outbreak (called a pandemic) in 2009 to 2010. It's a type of seasonal flu and is now included in the annual flu vaccine. The scientific name for swine flu is A/H1N1pdm09. It's often shortened to "H1N1". The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918. The zoonotic and spatial origins of the influenza virus associated with the "Spanish flu" pandemic of 1918 have been debated for decades. Outbreaks of respiratory disease in US swine occurred concurrently with disease in humans, raising the possibility that the 1918 virus originated in pigs.The ‘Spanish Flu’ pandemic of 1918 was one of the greatest medical disasters of the 20th century. This was a global pandemic, an airborne virus which affected every continent. It was nicknamed ‘Spanish flu’ as the first reported cases were in Spain. As this was during World War I, newspapers were censored (Germany, the United States ... The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918.The influenza virus that wreaked worldwide havoc in 1918-1919 founded a viral dynasty that persists to this day, according to scientists from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.The current international pandemic caused by a novel influenza A (H1N1) virus derived from two unrelated swine viruses, one of them a derivative of the 1918 human virus, 3 adds to the complexity...the new virus subtype may arise by either of two mechanisms: by the direct transmission of animal influenza strains to humans, as happened in 1918 with the 'spanish influenza' (h1n1); or through...An influenza virus called influenza type A subtype H1N1 is now. influenza pandemic of 1918-19, also called Spanish influenza pandemic or Spanish flu, the most severe influenza outbreak of the 20th century and, in terms of total numbers of deaths, among the most devastating pandemics in human history. ...Feb 19, 2018 · The swine flu pandemic in 2009 was a hybrid of the H1N1. Other significant flu years include the Asian Flu of 1957, H2N2, and the Hong Kong Flu of 1968, H3N2. “The differences between 1918 and ... The ‘Spanish Flu’ pandemic of 1918 was one of the greatest medical disasters of the 20th century. This was a global pandemic, an airborne virus which affected every continent. It was nicknamed ‘Spanish flu’ as the first reported cases were in Spain. As this was during World War I, newspapers were censored (Germany, the United States ... Essentially, scientists would need a genetically identified sample of the influenza's H1N1 virus taken from a victim who died before the first widespread outbreak of the pandemic in spring 1918 to...The 1918-19 influenza pandemic is thought to have originated in the U.S., even though it is often referred to as the “Spanish Flu,” and it was the first flu pandemic of the 20 th century. Caused by a type A influenza strain, the 1918-19 pandemic is estimated to have resulted in 20 to 50 million deaths worldwide, including more than 600,000 ... The Spanish flu pandemic of 1918, the deadliest in history, infected an estimated 500 million people worldwide—about one-third of the planet's population—and killed an estimated 20 million ...The Etiology of Influenza in 1918 During the 1890 influenza epidemic, Pfeiffer found what he determined to be the microbial agent to cause influenza. In the sputum and respiratory tract of influenza patients in 1892, he isolated the bacteria Bacillus influenzae , which was accepted as the true "virus" though it was not found in localized ... Swine flu (H1N1) "Swine flu" was the popular name for the virus which was responsible for a global flu outbreak (called a pandemic) in 2009 to 2010. It's a type of seasonal flu and is now included in the annual flu vaccine. The scientific name for swine flu is A/H1N1pdm09. It's often shortened to "H1N1". The influenza pandemic of 1918–19, the most destructive influenza outbreak in history and one of the most severe disease pandemics ever encountered, was caused by an H1N1 virus. This outbreak is estimated to have killed some 25 million people. Other notable H1N1 outbreaks occurred in 1977 and in 2009. The 1977 H1N1 virus emerged in China and ... sequenced PB1 genes of all human H1N1, H2N2, H3N2, swine H1N1, and avian viruses of all subtypes found in GenBank were analyzed. The cross (x) indicates the RSCU value of the 1918 virus PB1 gene. The crosshatch (#) represents human and new swine-origin (SO) 2009 H1N1When the first cases of the influenza A (H1N1) pandemic broke out in 1918 during the final year of World War I, the origins of this deadly pandemic were unknown. Contemporary explanations in the Allied nations ranged from fears of a new form of biological warfare to a by-product of trench warfare resulting from the use of mustard gas.But World War I and soldier mobilization created a situation well-suited to influenza dispersal. While the origin of the deadly strain of 1918 H1N1 remains obscure, evidence indicates that soldiers...Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later ... The 1918 influenza pandemic had another unique fea-ture, the simultaneous (or nearly simultaneous) infection of humans and swine. The virus of the 1918 pandemic like-ly expressed an antigenically novel subtype to which most humans and swine were immunologically naive in 1918 (12,20). Recently published sequence and phylogenetic The influenza virus that wreaked worldwide havoc in 1918-1919 founded a viral dynasty that persists to this day, according to scientists from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.A study from Hokkaido University found a sequence homology between the Hemagglutinin antigen amino acid residues found in the earlier 1918 strain and the 2009 H1N1 strain. This may have played a role in individuals who had been infected with the 1918 strain and its early descendants in showing stronger specific immunity to the 2009 H1N1 virus.The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... The phylogenetic studies of all eight RNA gene segments of influenza A viruses may indicate that the 1918 pandemic strain originated from a H1N1 swine virus, which itself might be derived from a...The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918.Especially remarkable was the 1918 flu’s predilection for taking the lives of otherwise healthy young adults, as opposed to children and the elderly, who usually suffer most. Some have called it the greatest pandemic in history. The 1918 flu pandemic has been a regular subject of speculation over the last century. Historians and scientists ... The influenza virus that wreaked worldwide havoc in 1918-1919 founded a viral dynasty that persists to this day, according to scientists from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... Feb 02, 2021 · The H1N1 virus is believed to have begun its deadly journey in pigs from a small region of central Mexico in January 2009. By March, the first cases were reported in California and Texas. Feb 19, 2018 · The swine flu pandemic in 2009 was a hybrid of the H1N1. Other significant flu years include the Asian Flu of 1957, H2N2, and the Hong Kong Flu of 1968, H3N2. “The differences between 1918 and ... Swine flu (H1N1) "Swine flu" was the popular name for the virus which was responsible for a global flu outbreak (called a pandemic) in 2009 to 2010. It's a type of seasonal flu and is now included in the annual flu vaccine. The scientific name for swine flu is A/H1N1pdm09. It's often shortened to "H1N1". The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... The ‘Spanish Flu’ pandemic of 1918 was one of the greatest medical disasters of the 20th century. This was a global pandemic, an airborne virus which affected every continent. It was nicknamed ‘Spanish flu’ as the first reported cases were in Spain. As this was during World War I, newspapers were censored (Germany, the United States ... Jul 05, 2009 · Influenza A (H1N1) virus overcame these barriers in 1918 to emerge from an avian source simultaneously in swine and humans. Antigenic Divergence of Human and Swine Influenza (1918–1930) Shope also discovered that antibody specificity against the 1918 human influenza virus rapidly diverged from that of swine influenza virus. In September 1918, the Spanish flu epidemic which was sweeping the planet reached Wisconsin. During 1918-1919, the flu killed an estimated 50 million people worldwide. By the end of 1918, more than 675,000 Americans had died from the flu, most between the ages of 19 and 42. The first cases were reported in southern Wisconsin in September 1918 ... Our results suggest that the 1918 pandemic virus originated shortly before 1918 when a human H1 virus, which we infer emerged before ∼1907, acquired avian N1 neuraminidase and internal protein genes.In September 1918, the Spanish flu epidemic which was sweeping the planet reached Wisconsin. During 1918-1919, the flu killed an estimated 50 million people worldwide. By the end of 1918, more than 675,000 Americans had died from the flu, most between the ages of 19 and 42. The first cases were reported in southern Wisconsin in September 1918 ... Their characterization has shed light on the origin of the virus and strongly supports the hypothesis that the 1918 virus was the common ancestor of both subsequent human and swine H1N1 lineages. Sequence analysis of the genes to date offers no definitive clue as to the genotypic basis of the exceptional virulence of the 1918 virus strain. The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918.The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... Although the pandemic had been dubbed the "Spanish flu," it only appeared to hit harder in neutral Spain because the country was free from wartime newspaper censors such as those in the United...Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later ... This finding supports the hypotheses that (1) the pandemic virus contains genes derived from avian-like influenza virus strains and that (2) the 1918 virus is the common ancestor of human and classical swine H1N1 influenza viruses.Antigenic and genetic characteristics of swine-origin 2009 A(H1N1) influenza viruses circulating in humans. Science 325: 197-201 [Europe PMC free article] [Google Scholar] Gibbs MJ, Gibbs AJ 2006. Molecular virology: Was the 1918 pandemic caused by a bird flu? Nature 440: E8 doi: 10.1038/nature04823 [Google Scholar]The Etiology of Influenza in 1918 During the 1890 influenza epidemic, Pfeiffer found what he determined to be the microbial agent to cause influenza. In the sputum and respiratory tract of influenza patients in 1892, he isolated the bacteria Bacillus influenzae , which was accepted as the true "virus" though it was not found in localized ... the new virus subtype may arise by either of two mechanisms: by the direct transmission of animal influenza strains to humans, as happened in 1918 with the 'spanish influenza' (h1n1); or through...The phylogenetic studies of all eight RNA gene segments of influenza A viruses may indicate that the 1918 pandemic strain originated from a H1N1 swine virus, which itself might be derived from a...The 1918-19 influenza pandemic is thought to have originated in the U.S., even though it is often referred to as the “Spanish Flu,” and it was the first flu pandemic of the 20 th century. Caused by a type A influenza strain, the 1918-19 pandemic is estimated to have resulted in 20 to 50 million deaths worldwide, including more than 600,000 ... Our results suggest that the 1918 pandemic virus originated shortly before 1918 when a human H1 virus, which we infer emerged before ∼1907, acquired avian N1 neuraminidase and internal protein genes.The 1918 influenza pandemic had another unique fea-ture, the simultaneous (or nearly simultaneous) infection of humans and swine. The virus of the 1918 pandemic like-ly expressed an antigenically novel subtype to which most humans and swine were immunologically naive in 1918 (12,20). Recently published sequence and phylogenetic The ‘Spanish Flu’ pandemic of 1918 was one of the greatest medical disasters of the 20th century. This was a global pandemic, an airborne virus which affected every continent. It was nicknamed ‘Spanish flu’ as the first reported cases were in Spain. As this was during World War I, newspapers were censored (Germany, the United States ... Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later ... Apr 13, 2020 · In August 1918, a more virulent strain of the Spanish flu was documented in France, Sierra Leone and the U.S. It is said that in the next 24 weeks the flu killed more people than AIDS killed in 24 years and the Black Death (bubonic plague) killed in a century. New research suggests this strain was essentially created in the trenches of World ... sequenced PB1 genes of all human H1N1, H2N2, H3N2, swine H1N1, and avian viruses of all subtypes found in GenBank were analyzed. The cross (x) indicates the RSCU value of the 1918 virus PB1 gene. The crosshatch (#) represents human and new swine-origin (SO) 2009 H1N1The 1918-19 influenza pandemic is thought to have originated in the U.S., even though it is often referred to as the “Spanish Flu,” and it was the first flu pandemic of the 20 th century. Caused by a type A influenza strain, the 1918-19 pandemic is estimated to have resulted in 20 to 50 million deaths worldwide, including more than 600,000 ... The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later ... pandemics have origin ated th rough the c ross-speci es . ... Overtime, people may forget COVID-19 existed, like the 1918 Spanish Flu, H1N1, and polio (Flecknoe, Charles Wakefield, ...The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918. Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later ... the new virus subtype may arise by either of two mechanisms: by the direct transmission of animal influenza strains to humans, as happened in 1918 with the 'spanish influenza' (h1n1); or through...Antigenic and genetic characteristics of swine-origin 2009 A(H1N1) influenza viruses circulating in humans. Science 325: 197-201 [Europe PMC free article] [Google Scholar] Gibbs MJ, Gibbs AJ 2006. Molecular virology: Was the 1918 pandemic caused by a bird flu? Nature 440: E8 doi: 10.1038/nature04823 [Google Scholar]The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... Jul 05, 2009 · Influenza A (H1N1) virus overcame these barriers in 1918 to emerge from an avian source simultaneously in swine and humans. Antigenic Divergence of Human and Swine Influenza (1918–1930) Shope also discovered that antibody specificity against the 1918 human influenza virus rapidly diverged from that of swine influenza virus. The source, timing, and geographical origin of the 1918–1920 pandemic influenza A virus have remained tenaciously obscure for nearly a century, as have the reasons for its unusual severity among young adults. Here, we reconstruct the origins of the pandemic virus and the classic swine influenza and (postpandemic) seasonal H1N1 lineages using a host-specific molecular clock approach that is ... Especially remarkable was the 1918 flu’s predilection for taking the lives of otherwise healthy young adults, as opposed to children and the elderly, who usually suffer most. Some have called it the greatest pandemic in history. The 1918 flu pandemic has been a regular subject of speculation over the last century. Historians and scientists ... Our results suggest that the 1918 pandemic virus originated shortly before 1918 when a human H1 virus, which we infer emerged before ∼1907, acquired avian N1 neuraminidase and internal protein genes.Around 1918, the ancestral virus, of avian origin, crossed the species boundaries and infected humans as human H1N1. The same phenomenon took place soon after in America, where the human virus was infecting pigs; it led to the emergence of the H1N1 swine strain, which later became the classic H1N1 swine flu. The Origin and Prevention of Pandemics. Clinical Infectious Diseases, 2010; 50: 1636-1640. [2] Frith J. The History of Plague-Part 1. The Three Great ... 1918, Spanish Flu, Influenza A, H1N1 ... This finding supports the hypotheses that (1) the pandemic virus contains genes derived from avian-like influenza virus strains and that (2) the 1918 virus is the common ancestor of human and classical swine H1N1 influenza viruses.Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later ... In the HA genes of influenza A H1N1/2009 strains showed highest homology ranged from 87.2 - 89.4 % to the HA gene of other virus isolates from selected regions. Like those of the worldwide influenza A H1N1/2009 strains, the NA genes were homologous to Singapore (JX309292) and Malaysian (CY118221) swine The influenza virus that wreaked worldwide havoc in 1918-1919 founded a viral dynasty that persists to this day, according to scientists from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.The zoonotic and spatial origins of the influenza virus associated with the "Spanish flu" pandemic of 1918 have been debated for decades. Outbreaks of respiratory disease in US swine occurred concurrently with disease in humans, raising the possibility that the 1918 virus originated in pigs.The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918.The "Spanish" influenza pandemic killed over 20 million people in 1918 and 1919, making it the worst infectious pandemic in history. Here, we report the complete sequence of the hemagglutinin (HA) gene of the 1918 virus. Influenza RNA for the analysis was isolated from a formalin-fixed, paraffin-embedded lung tissue sample prepared during ...sequenced PB1 genes of all human H1N1, H2N2, H3N2, swine H1N1, and avian viruses of all subtypes found in GenBank were analyzed. The cross (x) indicates the RSCU value of the 1918 virus PB1 gene. The crosshatch (#) represents human and new swine-origin (SO) 2009 H1N1The phylogenetic studies of all eight RNA gene segments of influenza A viruses may indicate that the 1918 pandemic strain originated from a H1N1 swine virus, which itself might be derived from a...Dec 20, 2010 · The initial outbreak of a novel swine-origin H1N1 flu pandemic strain in 2009 was called by many names. In July 2009, WHO experts named it "pandemic H1N1/09 virus" to distinguish it from both various seasonal H1N1 virus strains and the 1918 flu pandemic H1N1 strain. Some authorities object to calling the flu outbreak "swine flu". Our results suggest that the 1918 pandemic virus originated shortly before 1918 when a human H1 virus, which we infer emerged before ∼1907, acquired avian N1 neuraminidase and internal protein genes.Apr 13, 2020 · In August 1918, a more virulent strain of the Spanish flu was documented in France, Sierra Leone and the U.S. It is said that in the next 24 weeks the flu killed more people than AIDS killed in 24 years and the Black Death (bubonic plague) killed in a century. New research suggests this strain was essentially created in the trenches of World ... The 1918 influenza pandemic had another unique fea-ture, the simultaneous (or nearly simultaneous) infection of humans and swine. The virus of the 1918 pandemic like-ly expressed an antigenically novel subtype to which most humans and swine were immunologically naive in 1918 (12,20). Recently published sequence and phylogenetic The 1918 "Spanish flu" pandemic was caused by a founder H1N1 influenza A virus. The three subsequent pandemics of 1957, 1968, and 2009 (black arrows) were caused by descendants of the 1918 virus, which acquired one or more genes through reassortment ( 12 ).pandemics have origin ated th rough the c ross-speci es . ... Overtime, people may forget COVID-19 existed, like the 1918 Spanish Flu, H1N1, and polio (Flecknoe, Charles Wakefield, ...An influenza virus called influenza type A subtype H1N1 is now. influenza pandemic of 1918-19, also called Spanish influenza pandemic or Spanish flu, the most severe influenza outbreak of the 20th century and, in terms of total numbers of deaths, among the most devastating pandemics in human history. ...Dec 20, 2010 · The initial outbreak of a novel swine-origin H1N1 flu pandemic strain in 2009 was called by many names. In July 2009, WHO experts named it "pandemic H1N1/09 virus" to distinguish it from both various seasonal H1N1 virus strains and the 1918 flu pandemic H1N1 strain. Some authorities object to calling the flu outbreak "swine flu". This finding supports the hypotheses that (1) the pandemic virus contains genes derived from avian-like influenza virus strains and that (2) the 1918 virus is the common ancestor of human and classical swine H1N1 influenza viruses.An influenza virus called influenza type A subtype H1N1 is now. influenza pandemic of 1918-19, also called Spanish influenza pandemic or Spanish flu, the most severe influenza outbreak of the 20th century and, in terms of total numbers of deaths, among the most devastating pandemics in human history. ...the new virus subtype may arise by either of two mechanisms: by the direct transmission of animal influenza strains to humans, as happened in 1918 with the 'spanish influenza' (h1n1); or through...Swine flu (H1N1) "Swine flu" was the popular name for the virus which was responsible for a global flu outbreak (called a pandemic) in 2009 to 2010. It's a type of seasonal flu and is now included in the annual flu vaccine. The scientific name for swine flu is A/H1N1pdm09. It's often shortened to "H1N1". Around 1918, the ancestral virus, of avian origin, crossed the species boundaries and infected humans as human H1N1. The same phenomenon took place soon after in America, where the human virus was infecting pigs; it led to the emergence of the H1N1 swine strain, which later became the classic H1N1 swine flu. Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later ... The Spanish flu pandemic of 1918, the deadliest in history, infected an estimated 500 million people worldwide—about one-third of the planet's population—and killed an estimated 20 million ... ml4t project 8 pangunahing ideya example atlantic oceanside motel psx playstation bios rainbow sales associate pay 16x30 storage building comforter bed sets sleep suddenly synonyms smokeshow cocktail smoker volvo btcc cylinder head sad teenage songs homefinders property group 10l_1ttl