Keywords: AntigenicShift HiRes vector.svg ValidSVG Illustration of antigenic shift AntigenicShift_HiRes png 2010-08-19 19 25 UTC derivative work Mouagip AntigenicShift_HiRes png National Institute of Allergy and Infectious Diseases NIAID created with Adobe Illustrator PD-USGov-NIH Assessments 5 2011 1 1 delist/AntigenicShift HiRes png Original upload log This image is a derivative work of the following images File AntigenicShift_HiRes png licensed with PD-USGov-NIH 2009-04-30T21 25 41Z Fvasconcellos 2637x4236 3870712 Bytes <nowiki> Illustration of antigenic shift PNG version of File AntigenicShift HiRes jpg en National Institute of Allergy and Infectious Diseases National</nowiki> Uploaded with derivativeFX 2006 diagrams Influenza Medical diagrams News Featured pictures on Wikimedia Commons - vector |