World Health Organization assistant director general Keiji Fukuda attends a plenary session of the WHO Summit "Influenza Lessons Learned and Preparedness", in Cancun, Mexico, on July 3, 2009. Getty Images logo Getty Images 4 months ago

World Health Organization assistant director general Keiji Fukuda attends a plenary session of the WHO Summit "Influenza Lessons Learned and Preparedness", in Cancun, Mexico, on July 3, 2009.