By infecting hundreds of thousands of your own people, who are valuable worker drones, and risk infecting the Communist leaders themselves? Beyond unlikely...
You obviously havent studied their military doctrine and the level of human loss they are willing to accept, given their huge population.
Communists have a long history of removing many of their own. Look which segment of the population ‘dies’ from the virus... China locked down Wuhan in the beginning. I remember reading about roads being dug up to prevent passage in or out of Wuhan.. Yet China allowed international travel from Wuhan around the world.
Yes, those communists are known for respecting the sanctity of life. (eye roll)
They have entire villages where everyone has cancer and horrible tumors growing all over their bodies.
They actively test biological and chemical weapons on political prisoners.
They build entire fake cities where the walls topple if you lean on them.
Releasing a biological weapon on themselves isn't that big of a stretch, and in any case, Covid19 was made to sound dangerous by the media and the ChiCom propagandists themselves. Actual death rates aren't that bad. It's just more highly contagious than the average flu.