Most infected in Mexico, US swine flu victims may be passing it to others, WHO official says
The swine flu epidemic crossed new borders Tuesday with the first cases confirmed in the Middle East and the Asia-Pacific region, as world health officials said they suspect American patients may have transmitted the virus to others in the U.S.
Most people confirmed with the new swine flu were infected in Mexico, where the number of deaths blamed on the virus has surpassed 150.
But confirmation that people had become infected outside Mexico would indicate that the disease was spreading beyond travelers returning from the country, World Health Organization spokesman Gregory Hartl told reporters on Tuesday in Geneva.
Hartl said the source of some infections in the United States, Canada and Britain was unclear.
Hartl said WHO was waiting for U.S. authorities to announce that a number of students at a New York high school have passed the virus on to one another after their return from a spring vacation in Mexico. "I think we might have one other instance in the U.S.," he said. Read more...
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