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ID#:15798
Description:This diagram depicts the origins of the H7N9 virus from China, and shows how the virus's genes came from other influenza viruses in birds.
“H7N9” is the designation for one subtype of influenza viruses that is sometimes found in birds, but that does not normally infect humans. Like all influenza-A viruses, there are also different strains of H7N9. Beginning at the end of March, 2013, China reported human and bird (poultry) infections with a new strain of H7N9 that is very different from previously seen H7N9 viruses. Note how this image diagrams the recombination of genes, which takes place leading to the creation of this new strain of the H7N9 influenza virus.
High Resolution: Click here for hi-resolution image (16.1 MB)
Content Providers(s):CDC/ Douglas E. Jordan
Creation Date:2013
Photo Credit:Illustrator: Dan Higgins
Links:CDC - National Center for Immunization and Respiratory Diseases (NCIRD); Influenza (Flu): Images of Avian Influenza A H7N9
CDC - National Center for Immunization and Respiratory Diseases (NCIRD); Seasonal Influenza (Flu): Avian Influenza A (H7N9) Virus
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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