Perhaps trying to keep the Jenny McCarthys of the world at bay, the World Health Organization took time out to announce that "the swine flu virus did not result from a laboratory accident" despite "rumors started by an Australian virologist," according to the New York Times. WHO Deputy Director Keiji Fukuda is quoted as saying, "We took this very seriously. ... But the evidence suggests that this is a naturally occurring virus, not a laboratory-derived virus."
In other public health news, President Obama named New York City Health Department Commissioner Thomas Frieden to head up the Centers for Disease Control and Prevention. Rich Bessler, who has been acting director, will go back to his normal job of overseeing the Office for Terrorism Preparedness and Emergency Response, the Los Angeles Times says.