Immaggine:Right.pngFile:right.svg is a vector version of this file. It should be used in place of this PNG file. File:Right.png → File:right.svg For more information, see
Immaggine:AntigenicShift HiRes.svgis a derivative work of the following images: File:AntigenicShift HiRes.png licensed with PD-USGov-NIH 2009-04-30T21:25:41Z Fvasconcellos 2637x4236 (3870712