eogreen

John Oliver's recent show on rehab centers was shocking to me.

I teach high school and recently had a 9th grader ask about catching ebola (of course). I was trying to explain the difference between contagious and infectious. I found the concept hard to express. Is there a simple metaphor or definition to clarify the difference between a highly contagious illness and a highly infectious illness with an eye toward calming undereducated fears of ebola?

side issue: Pee is gold. That really bothered me because even high schools are urine testing now