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An outbreak of bird flu in Brazil, the world's largest chicken exporter, prompted countries to implement trade restrictions ...
6hon MSN
The fatality rate for H5N1 highly pathogenic avian influenza in humans has historically been high, with more than half of ...
An outbreak of bird flu in Brazil, the world's largest chicken exporter, prompted countries to implement trade restrictions ...
The H5N1 bird flu virus has historically extracted a heavy toll when it infects humans, with nearly half of confirmed cases ...
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