World Health Organization assistant director general Keiji Fukuda delivers a speech during a plenary session of the WHO Summit "Influenza Lessons Learned and Preparedness", in Cancun, Mexico, on July 2, 2009. Getty Images logo Getty Images 32 months ago

World Health Organization assistant director general Keiji Fukuda delivers a speech during a plenary session of the WHO Summit "Influenza Lessons Learned and Preparedness", in Cancun, Mexico, on July 2, 2009.