隔離中時の

quarantine
名詞の形容詞的用法

Our Best Recipes and Tips for Quarantine Cooking
https://www.nytimes.com/article/recipes-cooking-ti...

"The national public-health institution has had, so far, nothing direct to say about the proliferation of quarantine beards."
https://www.newyorker.com/culture/video-dept/the-r...

Quarantine period, quarantine flag等、元々ある用法。
COVID-19で自宅隔離をしている人が増え、ツイッターでも#QuarantineBeard、#QuarantineDietなどが発生するなど、ある種の流行語。