WHO: up to 2 billion people might get swine flu

The World Health Organization says up to 2 billion people could be infected by swine flu, if the current outbreak turns into a pandemic. WHO flu chief Keiji Fukuda told the Associated Press the number wasn't a prediction, but that past experience with flu pandemics indicated one-third of the world's population gets infected. Fukuda says that with a world population of 6 billion people, it's "reasonable" to expect that kind of infection tally.