It is estimated as 99.8% accuracy, which if true is great.
The issue seems that the production will be slow, and home testing kits do not work yet.
The patent needs to be released to the rest of the world ASAP, so that the production process can be refined to scale its deployment faster- and to develop home testing kits.
(Expect Trump will be on the phone trying to buy the patent so he can Brand it as Trump- made in USA .)
This could create the immunity ID to allow people back to work.
There is also talk that that initial suspicions that people have been infected more than once (at least so far), is not true. South Korea is saying that it was testing errors that led them to this conclusion, but now believe that so far everyone that has had Corona, has only had it once. This will remain the case - unless the virus mutates like the annual flue.
Headquarters are apparently in Switzerland. Company called Roche
FDA in US has already approved its usage.
https://www.roche.com/media/releases/med-cor-2020-05-03.htm