The mainstream media are reporting what the experts and the people involved are telling them. The World Health Organisation had people on the ground in Wuhan as soon as the epidemic started and various labs have analysed and sequenced the DNA of the virus. This is not China's description of events, this is from a multinational team of professionals. For what it's worth, China is now claiming that the virus started in America. For what we've been told by the hundreds of top doctors and experts from multiple nations to be untrue would require hundreds of these top health professionals in the world, people whose lives have been dedicated to public health, to all be lying. Why would they do that? Seriously?

I an not easily brainwashed. I am not the one repeating garbage conspiracy theories he read on facebook or heard from some bloke down the pub. That to me is somebody easily persuaded. Don't you think?