Since 21 April 2009, human cases of swine influenza A (H1N1) have been officially reported in the United States and Mexico. To date, there have been no reported human cases of swine influenza A (H1N1) in the Western Pacific Region. WHO is coordinating the global response to human cases of swine influenza A (H1N1) and monitoring the corresponding threat of an influenza pandemic.
WHO Director-General Dr Margaret Chan declared the situation to be a public health emergency of international concern (PHEIC) following a recommendation from the Emergency Committee convened under the IHR (2005) on 25 April 2009. WHO issued temporary advice to all Members States to enhanced surveillance and to immediately report any unusual influenza like illness cases to WHO. The Western Pacific Regional Office (WPRO) of WHO is closely monitoring the situation and has activated its outbreak and emergency management protocols.
For more information, please go to
https://www.who.int/emergencies/situations/influenza-a-(h1n1)-outbreak