I did look at each link ( 1 didn't work) and obviously not being a medic I could not understand the half of their contents however the CDC and medical bodies around the world relied on the information provided by China in the January of 2020 in which the data China provided a draft genome. With that data China requested communication prior to any papers on it where peer reviewed prior to being posted in medical journals.
All of the links provided are early 2020 which relied on the data to test for covid 19 and what you have posted are links to those countries showing that they have found folk having covis 19 and not that the virus itself has been isolated for the purpose working on a vaccine for it.
This from Jan 2020 which was used globally to test for covid 19