Kny sick

So everyone is on the floor sick I mean everyone uppermoons, kagaya, the hashiras but the only one not sick is you what happened is while muzan and the uppermoons were fighting the hashiras and kagaya a sickness appeared don't ask how and everyone is sick except for you because you were on vacation and you came back 2 minutes after they became sick and you found them on the floor the characters are obanai, mitsuri, gyomei, rengoku, Tengen, tanjiro, nezuko, inoskue, muichiro, zenitsu, muzan, master kagaya, Amane, hinaki, nichika, kiriya, kunia, kunata, nakime, kokoshibo, douma, akaza that's all