I think they test now some vaccin on people on China but no one will officially say, i think this has been created on laboratory and accidentaly spread it.
Dr. James Lyons-Weiler has emerged as one of the highly credible scientists associated with this issue. In my mind at least. He pointed out that while the actual papers which studied coronavirus vaccine development uncovered a nasty surprise (it made people get sicker upon re-infection like dengue fever) write-ups about this research tended to focus on the good points and leave the nasty part out. Dr. Lyons-Weiler's 'recommended reading' post has links to several of these papers:
https://jameslyonsweiler.com/2020/02/07/2019-ncov-vaccine-recommended-readings/The reason why this could be important is that one _hypothesis_ is that if the Chinese had entered into wide-spread trials, everyone who was a participant could be at greater risk. If policy makers read only the write-ups on the studies and not the studies themselves then it is quite possible to figure that phase-II or phase-III testing should be fine. The magic of totalitarianism is that scientists don't need to bother with informing people about almost anything. And people show up on time for their 'medical treatment'...if they don't they get a lowered social credit score.
Why might the Chinese want to be out in front on a coronavirus vaccine? The simplest explanation is purely economic. If they had a 'common cold vaccine' then it would be worth a lot in the global market. Especially now that entire populations are being forced to take whatever vaccines 'public health officials' say they need (and often enough said officials are financial beneficiaries of the corporation who make the vaccines.) Of course there are other possible reasons as well.
The above hypothesis (vaccine trials subjects) could be totally wrong as well and nothing like that happened. The forensic analysis will be to see who did the dieing and who did the living of the people who were expose or infected. If the deaths were clustered around people who underwent 'medical care' in certain places for certain time periods, that will be a meaningful observation to match against the hypothesis.