If true, I think this would be the first ever case of a novel virus ever being developed in a lab and then accidentally released. If false, then it's yet another viral mutation / species cross over which have happened all the time throughout history. When I hear hoofbeats I think "horses" not "zebras"...
Why not? There are multiple hurricanes every single year, but I still hear about them. Especially the ones that might affect my area. But it might be more like: "Yet another hurricane cause by weather." Not really a story, since they all have been. The opposite, though, that'd be a real story: "Hurricane not caused by weather!"
(For the record I wrote something about things that happen frequently not being news)