OK, now do Australia, China, Mongolia, Taiwan, Vietnam, and Korea. Being isolated is an advantage, but the key to success appears to be sealing the border earl

OK, now do Australia, China, Mongolia, Taiwan, Vietnam, and Korea. Being isolated is an advantage, but the key to success appears to be sealing the border early and having an enforced quarantine period upon entering the country. Essentially all countries that successfully controlled COVID did this. The purpose of this is to keep cases to a very low number, which allows test/trace/isolate to not be overwhelmed. If there are a lot of tracers and they don't have much work to do, they can be very thorough and you get few leaks. When you do get leaks, targeted lockdowns work to suppress clusters while test/trace swarms in. Lockdowns, quarantines, and mask mandates that are not actually enforced are much less useful than ones with teeth. There will always be a segment of the population that doesn't want to cooperate, and if they are not forced to comply, clusters will form among these populations, overwhelm test/trace, and then spread to the general population.