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Asian flu 1957 vaccine

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Added: 15.10.2019
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The "Asian Flu" was a category 2 flu pandemic outbreak of avian influenza that originated in China in early lasting until It originated from mutation in wild ducks combining with a pre-existing human strain. Death toll in the US was approximately 69, After the influenza pandemic of , influenza went back to its usual pattern of regional epidemics of lesser virulence in the s, s, and early s.
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Asian flu of 1957

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Asian flu of | pandemic | ohotech.info

An influenza pandemic is an epidemic of an influenza virus that spreads on a worldwide scale and infects a large proportion of the world population. There have been about three influenza pandemics in each century for the last years, the most recent one being the flu pandemic. Influenza pandemics occur when a new strain of the influenza virus is transmitted to humans from another animal species. Species that are thought to be important in the emergence of new human strains are pigs, chickens and ducks. These novel strains are unaffected by any immunity people may have to older strains of human influenza and can therefore spread extremely rapidly and infect very large numbers of people. Influenza A viruses can occasionally be transmitted from wild birds to other species causing outbreaks in domestic poultry and may give rise to human influenza pandemics.
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What is the Asian Flu?

The flu, or influenza, is a highly contagious viral infection that mainly affects the respiratory system. Though rare, completely new versions of the virus may infect people and spread quickly, resulting in pandemics an infection that spreads throughout the world with death tolls in the millions. Influenza has plagued humankind for centuries and, given its highly variable nature, may continue to do so for centuries to come. Influenza is a viral respiratory infection that causes symptoms similar to, but more severe than, the common cold, such as sudden onset fever, cough, runny or stuffy nose and severe malaise feeling unwell. The flu can also sometimes cause vomiting, diarrhea and nausea, particularly in young children , but the flu is primarily a respiratory disease and not a stomach or intestinal disease.
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A vaccine against the strain of influenza currently sweeping around the world has been made available to the British public. The so-called Asian Flu pandemic has already killed thousands of people around the globe — many of them in the United States. The virus is believed to have originated in North China in February before spreading worldwide. It reached the UK three months ago.
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