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The 1918–1920 flu pandemic, also known as the Great Influenza epidemic or by the common misnomer Spanish flu, was an exceptionally deadly global influenza pandemic caused by the H1N1 subtype of the influenza A virus.
D04536. Influenza vaccines, colloquially known as flu shots[14] or the flu jab, [15] are vaccines that protect against infection by influenza viruses. [16][17] New versions of the vaccines are developed twice a year, as the influenza virus rapidly changes. [16] While their effectiveness varies from year to year, most provide modest to high ...
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.
12 paź 2010 · The Spanish flu pandemic of 1918-1919 was the deadliest pandemic in world history, infecting some 500 million people across the globe—roughly one-third of the population—and causing up to 50...
The first mass use of an influenza vaccine for soldiers in the United States came in 1944, and for civilians, in 1945. During the research for this vaccine, it was discovered that immunity against one type of virus does not give immunity against the other.
On its centennial anniversary, it is worth remembering the history of the “Spanish” flu and how it set us on the path towards our modern flu vaccine. Burying victims of the Spanish Flu in Canada. When 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 ...
Early attempts at a vaccine during the 1918 influenza pandemic were based on this understanding, and it was not until the 1930s, when the influenza virus was identified, that progress towards an effective vaccine could really begin.
