| Last updated at: (Beijing Time) Friday, February 13, 2004 |
WHO issues chronology of key events in H5N1 infection |
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The World Health Organization (WHO) on Feb. 12 issued a chronology of key events in both the human and poultry outbreaks, one month after the announcement of laboratory results confirming the first three human cases of H5N1 infection on Jan. 12.
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