This is fine, but it is yet another molecular test. What we need now are serology tests. They are faster, cheaper, easier to execute (blood-based), can detect cured patients, and can scale to the population of a country.
Serology tests are already used in several countries in Asia, I have little doubt they will arrive in Europe and the US soon-ish.
We already have serology tests in Czechia (got several days ago from China), but there is some confusion about how useful they are. They may produce negative results even for patients with several days of clinical symptoms, so negative results still needs to ve verified with molecular test.
Serology tests are already used in several countries in Asia, I have little doubt they will arrive in Europe and the US soon-ish.