Japan has ended its Covid-19 state of emergency by following the policy of wearing face masks, good hygiene, voluntary and not very restrictive social distancing (without large-scale testing). They focused on finding clusters of infections and attacking the underlying causes, which often proved to be overcrowded gathering spots such as gyms and nightclubs.
Thus, the rule of thumb: the “three Cs”— avoid closed spaces, crowds, and close-contact settings in which people are talking face-to-face.
https://www.sciencemag.org/news/2020/05/japan-ends-its-covid-19-state-emergency?utm_campaign=news_daily_2020-05-26&et_rid=694207261&et_cid=3340566
https://www.sciencemag.org/news/2020/05/japan-ends-its-covid-19-state-emergency?utm_campaign=news_daily_2020-05-26&et_rid=694207261&et_cid=3340566
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