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Swine flu evolves under the radar
Dangerous flu viruses are evolving in pigs, yet pigs are under little more surveillance now than they were before the 2009 swine flu pandemic
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Dangerous flu viruses are evolving in pigs, yet pigs are under little more surveillance now than they were before the 2009 swine flu pandemic
Flu experts say the benefits to public health of publishing what makes the H5N1 virus transmissible outweigh the risks of bioterrorism