Bird flu experts meet at the World Health Organisation this week to decide how to continue with genetic research that risks creating a catastrophic pandemic.
The urgent summit is an attempt to settle a row over the censoring of two studies which show how make a highly contagious mutant H5N1 bird flu virus.
Far deadlier than normal flu, H5N1 kills roughly half of humans that contract it, but so far the virus has been mainly restricted to poultry.
Deadly: The new man-made genetic mutation of the lethal H5N1 virus can be transmitted by coughs and sneezes
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