Margaret Chan, who took up her post on January 4, said a bird-flu pandemic would be devastating. Bird flu, which has ravaged poultry populations in Southeast Asia, has killed some 150 people in the last few years.
But experts fear that if it becomes more easily passed between humans, it could trigger a pandemic in which millions could die.
(Reuters, AFP, AP)
2006 In Review
LOOKING BACK: A photo gallery of the key news events of 2006. ...more