Prevention Measures and Guide of Consultation about the Novel Coronavirus
The risk of occurrence of clusters is particularly high when the “Three Cs” overlap.
１．Closed spaces with insufficient ventilation
２．Crowded conditions with people
３．Conversations in short distance
Read more information from here :
https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/newpage_00032.html
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