There are a bunch of things working in theory, but not in practice
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送交者: jhuang 于 2021-08-29, 23:41:24:
回答: 理性的说，合理的口罩政策应该是感染了就带口罩，没感染就不必戴口罩。 由 康康舞 于 2021-08-29, 23:35:35:
Mask is one example. Even surgical mask is very limited. If a doctor/nurse gets inoculated, he/she doesn't need wear mask at all times.
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