The Germans don't have much bias here and recently:
>Germany's foreign intelligence service believed there was a 80-90% chance that coronavirus accidentally leaked from a Chinese lab, German media say. https://www.bbc.co.uk/news/articles/cz7vypq31z7o
which is roughly the odds I'd guess too.
There is the matter of trying to prevent the next one. It kind of looks like there were other incidents around the WIV before covid 19 and it was a systemic issue of dangerous research without proper safeguards, and I doubt the WIV was the only lab at it.
There's a bit of an issue that if a researcher makes some dangerous new virus in the lab they get an interesting paper out of it, maybe tenure, and don't worry very much about that it could kill a million people in the one in a thousand chance it escapes. But a one in a thousand chance of a million deaths is still a statistical expectation of a thousand deaths.
