コロナ禍 (ころなか)

テレワーク (てれわーく): This term refers to telework or remote work, which became more prevalent during the コロナ禍.

感染拡大 (かんせんかくだい): This term means "spread of infection" and is often used in relation to コロナ禍.

マスク着用 (ますくちゃくよう): This term means "wearing masks" and became an important preventive measure during the コロナ禍.