WHO investigating Norway swine flu mutations
By Associated Press
Friday, November 20, 2009 -
Friday, November 20, 2009 -
GENEVA — The World Health Organization says it is investigating samples of mutated swine flu found in two Norwegians who died of the virus and one person who suffered severe illness.
Norway’s Institute of Public Health announced Friday that the mutation "could possibly...cause more severe disease" because it infects tissue deeper in the airway than usual.
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