Vietnam is still in containment phase, so tests per million capita is not what I would look at. Rather, about 2400 tests against about 40 confirmed cases is a factor of 60 tests per confirmed cases (this should cover F1, F2). Italy on the other hand is about 60000 tests against 12000 confirmed cases, a factor of only 5. Hong Kong's number is impressive, 120. South Korea's 30.