I tried to look in the workshop but couldn't find anything when searching disease or hospital.

The kind of mod I'm looking for alters how outbreaks would work.

Right now a person will go to the doctor after they finish their current task and stay there until cured. However people who walk past on the street outside the hospital get ill walking past. It's this interaction I'm looking to eliminate.

I am looking for a mod where an infected person inside the hospital can't infect someone outside the hospital.