COVID19 bio-weapon was made in a secret PLA lab in the North. then tested in the Uigur test area were it killed 5,000 successfully. both the town and the sewers were destroyed. the canisters were then loaded on trucks bound for the L4 covert PLA lab in wusan for storage or to await deployment in Japan. On the way, near wusan, there was an accident which spilled the canisters out of the trucks and they were stolen by enterprising locals.
private source
The Chinese are not stupid. and the canadians had nothing to do with it.
Accident or payback from Uigur’s ?