Its probably because there were some flaws in border procedures in Hong Kong, and some patients from overseas may have brought the virus to communities which resulted in the current local transmission.

Jin Dongyan

They should focus on the people rather than the fish.

It is 100 or 1,000 times more possible that these fishermen got infected by other fishermen. There's no evidence that the fish can transmit the virus.

If there is no black-and-white definition for Covid deaths or Covid-related deaths or how these deaths should be reported then everything is just up to that expert panel to decide, that's the reality.

We have been ringing the alarm bell again and again about this -- it's a hard-learned lesson not only for Hong Kong, but also for China.

It's very challenging for anybody to find out the cause of this, it would be very difficult now to obtain any first line evidence to investigate the origin of the SARS-COV-2 and the index cases of Covid-19. It's really challenging. And I doubt these international experts can find anything. I'm not very optimistic.