I don't know about you to to me this guy actions were way beyond careless. Especially since he's an educated, informed person who understood the risks of his condition.
I agree completely, a freaking moron. I truly hope that the present him with the bill for testing everybody he exposed to the disease and any treatment anyone hase to receive.
As to being "educated":
Sometimes a person who knows a lot about one thing assumes that they're an expert on everything.