Flu Warning from World Health Organization

BANGKOK, Thailand -- The World Health Organization has issued a dramatic warning that bird flu will trigger an international pandemic that could kill up to seven million people.

The influenza pandemic could occur anywhere from next week to the coming years, WHO said.

"There is no doubt there will be another pandemic," Klaus Stohr of the WHO Global Influenza Program said on the sidelines of a regional bird flu meeting in Bangkok, Thailand.

"Even with the best case scenario, the most optimistic scenario, the pandemic will cause a public health emergency with estimates which will put the number of deaths in the range of two and seven million," he said.

"The number of people affected will go beyond billions because between 25 percent and 30 percent will fall ill."