You think you had a choice? NO! YOU DON'T! It's random. Most of the time, you'll need to be put in something called the "Fangcang Hospital". Is it a hospital? No, it's just a place to isolate people who got the disease. (so it's a concentration camp!) Not even who actually have the disease: if they tell you you need to go, you will have to go, unless you want police to arrive at your front door.
You're lucky, this time, that you get a hotel room.