@JusticeInMed @thehouseofpod This is actually similar to the Bangladesh masking study, where some people were randomly assigned to be encouraged to mask, and others weren't (and, in practice, masked less or not at all). No one was told not to mask.
@JusticeInMed@thehouseofpod这实际上类似于孟加拉国的掩蔽研究，在该研究中，一些人被随机分配被鼓励进行掩蔽，而另一些人则没有（实际上，掩蔽较少或根本没有）。没有人被告知不要戴面具。