On April 25, 2009, the World Health Organization (WHO) declared the 2009 H1N1 outbreak a Public Health Emergency of International Concern.
“The World’s First Public Health Emergency of International Concern”
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Source: NLM
On April 25, 2009, the World Health Organization (WHO) declared the 2009 H1N1 outbreak a Public Health Emergency of International Concern.
Source: NLM