I just watched netflix documentary s02e04 The Next Pandemic, and would personally recommend it.Anyways, speaking to some of my family members about it, there appears to be an obvious pattern of many diseases being possibly directly triggered from the massive slaughters of animals for meat consumption. Recent examples include: mad cow disease, SARS outbreak, swine flu, chicken avian flu... etc. Maybe that is a big hint / Karma forces at play here?
Regarding the coronavirus outbreak this time, it probably started with people consuming the so-called "bush-meat," e.g., bats, snakes. However, the main cause was that the municipal and provincial governments intentionally withheld information from the public and the central authorities to the extent that once the outsiders discovered the truth, it has already been too late to contain the spread of the disease.
Quarantining a city of 11 million people is unprecedented. But at this moment, this measure will not be enough. The peak of outbreaks is expected to be late Feb to early Mar.