<p>Description: This transmission electron micrograph (TEM), taken at a magnification of 150,000x, revealed the ultrastructural details of an avian influenza A (H5N1) virion, a type of bird flu virus which is a subtype of avian influenza A. At this magnification, one may note the stippled appearance of the roughened surface of the proteinaceous coat encasing the virion. 
</p><p>Photo Credit: Cynthia Goldsmith/ Jackie Katz 
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Cynthia Goldsmith/ Jackie Katz
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