Centers for Disease Control and Prevention (CDC) has reported recent infections in children in North America with a swine-origin triple reassortant influenza A(H3N2) virus that includes a genetic component from the pandemic 2009 virus, and with probable human-to-human transmission with these viruses.

ECDC has conducted a rapid risk assessment to evaluate the implications for public health in Europe.

 ECDC rapid risk assessment: Swine-origin triple reassortant influenza A(H3N2) viruses in North America (29 November 2011)

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Related updates: 25 November 2011: ECDC Public health development ‘Swine influenza in humans: update from Iowa State (United States)'  See all recent updates on influenza  Influenza in swine: Influenza (in swine) health topic