Avian influenza causes: Difference between revisions
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==Overview== | ==Overview== | ||
Avian [[influenza]] is an [[infection]] caused by avian (bird) [[influenza virus|influenza (flu) viruses]]. These [[influenza virus]]es occur naturally among birds. Wild birds worldwide carry the [[virus]]es in their [[intestine]]s, but usually do not get sick from them. However, avian [[influenza]] is very [[contagious]] among birds and can make some domesticated birds, including chickens, ducks, and turkeys, very sick and kill them. There are many different subtypes of type A [[influenza virus]]es. Usually, “avian [[influenza virus]]” refers to [[influenza A virus]]es found chiefly in birds, but [[infection]]s with these [[virus]]es can occur in humans. | Avian [[influenza]] is an [[infection]] caused by avian (bird) [[influenza virus|influenza (flu) viruses]]. These [[influenza virus]]es occur naturally among birds. Wild birds worldwide carry the [[virus]]es in their [[intestine]]s, but usually do not get sick from them. However, avian [[influenza]] is very [[contagious]] among birds and can make some domesticated birds, including chickens, ducks, and turkeys, very sick and kill them. There are many different subtypes of type A [[influenza virus]]es. Usually, “avian [[influenza virus]]” refers to [[influenza A virus]]es found chiefly in birds, but [[infection]]s with these [[virus]]es can occur in humans. “Human [[influenza virus]]” usually refers to those subtypes that spread widely among humans. There are only three known A subtypes of [[influenza virus]]es ([[H1N1]], [[H1N2]], and [[H3N2]]) currently circulating among humans. [[Influenza A virus]]es are constantly changing, and they might adapt over time to infect and spread among humans. | ||
==References== | ==References== | ||
Revision as of 20:07, 28 January 2013
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Avian influenza Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Avian influenza causes On the Web |
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American Roentgen Ray Society Images of Avian influenza causes |
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Risk calculators and risk factors for Avian influenza causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Avian influenza is an infection caused by avian (bird) influenza (flu) viruses. These influenza viruses occur naturally among birds. Wild birds worldwide carry the viruses in their intestines, but usually do not get sick from them. However, avian influenza is very contagious among birds and can make some domesticated birds, including chickens, ducks, and turkeys, very sick and kill them. There are many different subtypes of type A influenza viruses. Usually, “avian influenza virus” refers to influenza A viruses found chiefly in birds, but infections with these viruses can occur in humans. “Human influenza virus” usually refers to those subtypes that spread widely among humans. There are only three known A subtypes of influenza viruses (H1N1, H1N2, and H3N2) currently circulating among humans. Influenza A viruses are constantly changing, and they might adapt over time to infect and spread among humans.