Vietnam, Taiwan, Thailand, Singapore, China, Hong Kong, Japan, South Korea, many African countries, Australia, New Zealand, Iceland, The Isle of Man, the Channel Islands
Yes, and at least five of those countries jump out at me without needing to check further (Australia, NZ, S. Korea, Taiwan and Japan) as nations that have used testing, tracing and tracking along with border controls to keep covid at bay. The others have generally all implemented pretty hardcore border controls and internal lockdowns.
My point to @wevs was that the women they were deriding for voicing confidence in testing as a way of controlling covid was wrong if they’re using other countries as an example. Covid testing and symptom surveillance (mandatory temperature testing for example) have been used widely and intensively in countries with a handle on it.