flu-virus.jpg

Using genes resurrected from the 1918 Spanish influenza virus, the virus responsible for a pandemic that killed an estimated 20 million people, scientists have gathered important new clues to why the virus spread quickly and killed efficiently. Adding the genes to a comparatively benign strain of influenza (pictured), shows that a minor genetic change can turn a mild form of the virus into a highly virulent strain.
Used with permission by: UW-Madison University Communications 608/262-0067
Photo by: courtesy Yoshihiro Kawaoka, University of Wisconsin-Madison
Date: 9/04 File#: scan provided

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