The best-kept secret of the current fuss and, sadly enough, hysteria over H5N1 is that the virus has been in existence well beyond its highly publicized Hong Kong appearance in 1997; the virus was initially discovered in Scottish chickens in 1959 . The virus has therefore been mutating and making contact with humans for 47 years. If it hasn’t become pandemic in that half a century, it’s hardly inevitable that it will.
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