Influenza A (H1N1) virus is a subtype of influenza A virus and was the most common cause of human influenza (flu) in 2009. Below are H1N1 virus images.
Reference
-http://en.wikipedia.org/wiki/H1n1
Images
-www.news.wisc.edu
-www.examiner.com
-www.chattahbox.com
-www.islandcrisis.net
-www.dailycontributor.com
