A potentially deadly strain of the flu virus sent accidentally to Mexico did not reach the lab as intended, Mexico's Televisa reported Friday.
The World Health Organization said the samples mistakenly sent to 18 countries by a U.S. testing firm did not reached their intended destinations in Mexico and Lebanon.
The samples of the Asian flu are the same as those that killed more than 1 million people in 1957, although it had disappeared by the late 1960's.
An outbreak of the Asian flu could prove disastrous, as most people born after 1968 have not been immunized for that particular strain.
There have been no reports, however, of anyone becoming ill as a result of the samples.
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