http://www.nytimes.com/2009/05/15/health/policy/15flu.htmlThe swine flu virus did not result from a laboratory accident, the World Health Organization said Thursday, working to debunk rumors started by an Australian virologist and circulated by news outlets all over the world. “We took this very seriously,” Dr. Keiji Fukuda, the agency’s deputy director general, said of the virologist’s assertion. “But the evidence suggests that this is a naturally occurring virus, not a laboratory-derived virus.”
(clip)
The virus rumor was started by Adrian J. Gibbs, a retired plant virologist from the Australian National University, who previously published work in the journal Science questioning the idea, now accepted, that the 1918 pandemic started as a bird flu. Dr. Gibbs, who had studied the gene sequences of the swine flu virus posted on public data banks, argued that it must have been grown in eggs, the medium used in vaccine laboratories. He reached that conclusion, he said, because the new virus was not closely related to known ones and because it had more of the amino acid lysine and more mutations than typical strains of swine flu.
His theory was reported by Bloomberg News on Tuesday. Even though scientists at the Centers for Disease Control and Prevention were skeptical and some prominent virologists openly derisive, news outlets have repeated and magnified the theory, adding speculation about bioterrorism that even Dr. Gibbs repudiated. He was also interviewed Thursday on the ABC News program “Good Morning America.” Dr. Fukuda said a W.H.O. panel of experts had concluded that “the hypothesis does not really stand up to scrutiny.” The lysine residues and mutation rates were typical, he said, and many swine flus seem unrelated because not enough pigs are tested each year.
(clip)
Late Thursday, Smithfield Foods reported that the Mexican health authorities had not found the new virus in herds at its huge hog-fattening operations in Veracruz, which some have blamed for the outbreak. But it was not clear what test was used; only blood tests for antibodies would show whether pigs had the virus in February, when the human outbreak is thought to have begun. ...(more@link)