China has been killing its citizens for organs for a long time, let alone all that 20th century stuff. I've heard some very startling stories from my Chinese step mum, which aren't really relevant here, but...
Generally when the PRC is organ harvesting, they cremate the bodies afterwards.

But even if it's just to under-report the Wuhan virus, and not related to their normal operations, it's hardly surprising. All about the face, ukno, the image.
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That said I think China is a cool country, there's despotic regimes everywhere, I'd still visit. As long as there's no pandemic at the time ofc. I bet flights will be cheaper after this! lol