Gene From 1918 Virus Proves Key to Virulent Influenza (University of Wisconsin News Release) 10/6/2004 Contact: Yoshihiro Kawaoka "Using a gene resurrected from the virus that caused the 1918 Spanish influenza pandemic, recorded history's most lethal outbreak of infectious disease, scientists have found that a single gene may have been responsible for the devastating virulence of the virus. Writing Oct. 7 in the journal Nature, virologist Yoshihiro Kawaoka of the University of Wisconsin-Madison and the University of Tokyo, describes
experiments in which engineered viruses were made more potent by the addition of a single gene. The work is evidence that a slight genetic tweak is all that is required to transform mild strains of the flu virus into forms far more pathogenic and, possibly, more transmissible...
Using a comparatively mild form of influenza A virus as a template, Kawaoka's team added the two 1918 genes that code for hemagglutinin and neuraminidase and infected mice with the engineered viruses."
Lori Price
http://www.legitgov.org/flu_oddities.html