http://www.upi.com/view.cfm?StoryID=20050805-050919-5093rExperts question cause of Chinese outbreak
By Steve Mitchell
Published 8/5/2005 5:21 PM
WASHINGTON, Aug. 5 (UPI) -- Chinese officials maintain that a mysterious disease in pigs that has also infected and killed humans is an outbreak of swine flu, but the World Health Organization has recommended that further testing be conducted to identify the pathogen more precisely, and at least one U.S. scientist thinks it is possible a strain of Ebola virus could be involved.
The disease, which has occurred predominately in China's Sichuan province, has infected 206 people, of which 38 have died and another 18 are critically ill.
The Chinese Ministry of Health has said the disease is swine flu, which is not actually a flu but an illness caused by the bacteria Streptococcus suis. This disease, however, generally does not cause more than a few cases of human illness and it usually does not cause death in people.
"I don't think it's the bacteria," Henry Niman, a molecular biologist, told United Press International. "The bacteria usually doesn't infect humans and when it does it usually isn't fatal," said Niman, who is president of Recombonomics, a firm in Pittsburgh, Pa., that studies molecular evolution and the emergence of new diseases.
Niman thinks it is likely the outbreak is due to a virulent form of the avian flu strain H5N1 that has struck southeast Asia and killed more than 50 people.
"It's hard to tell what it is without further testing," Niman said.
So far, Chinese authorities have been reluctant to allow outside parties access to samples from patients.
Another possibility is Ebola, a deadly virus that kills 50 percent to 90 percent of those it infects, Niman said. He bases this on a report put out by a Chinese Web site Boxun.com, which claimed to be an interview with a Chinese physician who helped investigate the Sichuan outbreak............