"Remember recently that two separate groups of scientists artificially mutated the H5N1 flu strain in their labs to make it easily transmissible in mammals? And the government blocked the publication of their research because they considered the information too dangerous? Well, H7N9 is halfway to acquiring the mutations that the scientists found would make it easily transmissible. "

A flu virus is probably the ultimate bio-weapon - intentional or otherwise. How do we know that HN79 isn't a mutation from a lab? Why do these things always keep popping up in China, anyway :-)

Pete2