noun
person self-quarantining at home
Used especially in contexts of infectious disease control, referring to someone who stays home to avoid spreading illness.
新型コロナウイルスの感染拡大で、自宅待機者が増えている。
With the spread of the novel coronavirus, the number of people self-quarantining at home is increasing.
自宅待機者は、毎日健康状態を報告する必要がある。
People self-quarantining at home need to report their health status daily.
Compound of 自宅 (one's home), 待機 (standing by, waiting), and 者 (person). The term gained prominence during the COVID-19 pandemic.