Keywords: A (H5N1) virion, a type of bird flu virus which is a subtype of avian influenza A.jpg 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 Photo Credit Cynthia Goldsmith/ Jackie Katz 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 http //phil cdc gov/PHIL_Images/8036/8036_lores jpg Cynthia Goldsmith/ Jackie Katz PD-USGov H5N1 |