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by mcsb4 2275 days ago
Many people don't know they are infected and also there is not enough testing capability in many countries. For example Heidi Klum tired to get tested after catching a cold and it took her several days to be accepted for a test. Now she is not exactly your average Joe and would be willing to shell out a few 1000 dollars to get tested.

Unless that situation changes, masks are a good alternative. And yes, only if everybody wears them.