One of my friend's wife caught meningitis - a number of her friends were out for a supper at a brasserie in Montreal, some/all were infected.
The next morning, she wasn't feeling so well, so my friend told her to take the day off. A few hours later, she called him at work to tell him that she really felt sickly, so he rushed home and called an ambulance. A few hours later, she was dead. Nasty disease.
Edited to add: a number of the other people in the party also died, I kinda recall about eleven.