http://kidshealth.org/parent/infecti...eningitis.html
"Most cases of meningitis result from infections that are contagious. The infectious agents usually spread from person to person in tiny drops of fluid from the throat and nose of someone who is infected. (This could be a person with either meningitis or, more likely, the common infection caused by that germ.) The drops may become airborne when the person coughs, laughs, talks, or sneezes. They then can infect others when people breathe them in or touch the drops and then touch their own noses or mouths."

I'm assuming Jae could put on a suit or something, but the hospital might not even allow it to keep the illness quarantined.

Bacterial is way more serious than viral, but it's still nothing to take lightly.