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When did the World Health Organization declare that the 2009 H1N1 pandemic had ended?
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influenza pandemic (H1N1) of 2009
Doctors at the Mexico City Navy Hospital wearing protective gear as they tend to patients complaining of H1N1 flu-like symptoms.
On August 10, 2010, the World Health Organization (WHO) director-general, Margaret Chan, announced that the 2009 H1N1 influenza pandemic was officially over and no longer constituted a level 6 pandemic alert.1
This decision was made because the intensity of local H1N1 outbreaks had decreased, with the virus beginning to behave more like seasonal influenza. Additionally, the declaration reflected improved global vaccination coverage and higher levels of acquired immunity within communities.1