File:A size illustration.svgfollowing conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any
File:AntigenicShift HiRes.svgFvasconcellos 2637x4236 (3870712 Bytes) {{Information |Description={{en|Illustration of [[:en:antigenic shift|antigenic shift]]}} |Source=PNG version of
File:A size illustration.pngbytes) (improved) 12:58, 17 October 2004 . . Toytoy (15426 bytes) (paper sizes) en:Image:A size illustration.png English determination method: SHA-1