Coronavirus: Origins

A lot is going on, now we have several mutations of the virus to deal with. Has anyone else noticed little or no talk about where this virus actually originated. Is that in the hope people will forget? 

Last I read anything about this, just about every suspect source had been ruled out; gone were bats, the Wuhan wet market, and a leak from a biological weapons laboratory. Australia is intending to hold an inquiry, but China seems to consider this a slur and is taking action against them by placing punitive tariffs on their exports to China. 

An obvious question this; why would China be opposed to finding out the truth? Hmm?