三みっつの密みつ

expression, noun

three Cs; three conditions that facilitate infection transmission (closed spaces, crowds, close contact)

A set phrase from COVID-19 public health messaging, referring to 密閉 (closed spaces), 密集 (crowds), and 密接 (close contact). Often used in warnings to avoid these situations.

See also: ３密

• 感かん染せん拡かく大だいを防ふせぐため、三みっつの密みつを避さけてください。

  To prevent the spread of infection, please avoid the three Cs.

• 政せい府ふは「三みっつの密みつ」を避さけるよう呼よびかけている。

  The government is urging people to avoid the 'three Cs'.