People displaced by post-election violence in Kenya wait for food aid at Jumhuri park in Nairobi in January 2008. The World Health Organisation's director general has said that insufficient food, climate change and pandemic flu are three global crises which could undo progress in public health.(AFP/File/Simon Maina)

GENEVA (AFP) - Insufficient food, climate change and pandemic flu are three global crises which could undo progress in public health, the World Health Organisation's director general said Monday. health-website.net

"These three critical events, these clear threats to international security, have the potential to undo much hard-won progress in public health," said WHO director general Margaret Chan. health-website

Chan was addressing delegates from 193 member states attending the WHO's annual general assembly. www.health-website.net