メガクラスター

noun

mega cluster; very large cluster (of a virus); large concentrated outbreak

Wasei-eigo term used especially in epidemiological contexts to describe a large cluster of infections or a major outbreak. Often used in news reports about COVID-19 and similar diseases.

wasei-eigo (Japanese-coined English), from mega cluster

• この地ち域いきでメガクラスターが発はっ生せいし、感かん染せん者しゃが急きゅう増ぞうした。

  A mega cluster occurred in this area, causing a sharp rise in infections.

• 専せん門もん家かはメガクラスターの拡かく大だいを防ふせぐため、早そう急きゅうな対たい策さくが必ひつ要ようだと述のべた。

  Experts said that urgent measures are needed to prevent the mega cluster from spreading.