Emily
Editor, Senior Moderator
they may have resorted/renamed their samples during the years.
they may have much more than they show.
E.g. this report from one researcher in Taiyi-Case 100km South of Wuhan
https://www.sixthtone.com/news/10023...ting-epidemics
And the bats from Zhangshan. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135831/
There should be others from "civilized" places.
And probably they are busy searching since Jan....
I wonder why it was renamed. Maybe the "Rat" actually refers to rats, like "Bt" refers to bats. They might have adapted the BtCoV/4991 bat strain from the cave where the miners got that atypical pneumonia to rats as the other researchers did with another bat virus in the paper you found.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135831/
Despite the failed isolation of the infectious virus from PCR-positive samples in Vero E6 cells, we attempted to isolate the virus from suckling rats by infecting them with tissue samples that were positive for the coronavirus. After 15 days, pathological analysis showed that the tissues and organs of the infected rats exhibited varying degrees of inflammation, and the inflammatory reaction in the brain tissues was most evident.
Those baby rats must have suffered quite a bit.