Testing, testing and more testing ..
Especially when we have developed 5-10 minute test kits and there is a talk of self- test kits as well. (At the start of this epidemic, it took about a day for the results. and then kits, equipment and trained staff were not available thus extensive testing was impossible.
If nations put billions on these kits, and test everyone than on halting the engine of economy perhaps we may get better results.