この表、Usual, Common, Sometimes... の使い分けかた問題に出せそう。英語圏のひとは全員スッとわかるんか？

Is it RSV, a cold, the flu or COVID? What to know about the differences between illnesses
https://www.clickondetroit.com/health/2022/11/03/is-it-rsv-a-cold-the-flu-or-covid-what-to-know-about-the-differences-between-illnesses/