from: en:Image:Influenza virus.png

Influenza Virus photo from

https://web.archive.org/web/20091227225640/http://www.ncbi.nlm.nih.gov/ICTVdb/Images/Murphy/Downloadable%20Graphics%20Files.htm

A/Hong Kong/1/68

Influenza virus, A/Hong Kong/1/68, the causative agent of the 1968 global epidemic. Negatively stained virions showing surface projections which contain the receptors by which the virus attaches to host respiratory tract epithelial cells. Magnification: approximately x70,000. Micrograph from F. A. Murphy, School of Veterinary Medicine, University of California, Davis.

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