Government scientists have identified five more people who have been infected with swine flu, apparently confirming suspicions that the unusual strain of the respiratory infection is spreading from person to person, federal health officials said yesterday.
www.washingtonpost.com...
CDC officials detected a virus with a unique combination of gene segments that have not been seen in people or pigs before. The bug contains human virus, avian virus from North America and pig viruses from North America, Europe and Asia.
Health officials have seen mixes of bird, pig and human virus before, but never such an intercontinental combination with more than one pig virus in the mix.
Scientists keep a close eye on flu viruses that emerge from pigs. The animals are considered particularly susceptible to both avian and human viruses and a likely place where the kind of genetic reassortment can take place that might lead to a new form of pandemic flu, said Dr. John Treanor, an infectious disease specialist.......
.........U.S. health officials are consulting with Mexican and Canadian health officials, and the CDC is beginning to receive samples from Mexico for testing, a CDC spokesman said. The ethnicity of the seven confirmed cases was not disclosed.
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[edit on 24-4-2009 by burntheships]




