Beigtais zirgs
UK Royal Society publicējusi meta review par nīsto mandātu efektivitāti. Izrādās, ierobežojumi ir efektīvi, tai skaitā

The weight of evidence from all studies suggests that wearing masks, particularly higher quality masks (respirators), supported by mask mandates, generally reduced the transmission of SARS-CoV-2 infection. (..) and mask wearing in the context of a mandate to wear masks was more effective than mask wearing in the context of voluntary behaviour.

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