Mono is VERY rarely fatal, but your spleen can very easily be ruptured when you have mono, and if it is but no attention is paid to it, THIS can be very fatal and has happened in some cases, it is...
A hernia can be deadly when it involves the intestines protruding through the abdominal wall and they become constricted. This can occur after a surgery scar has opened and allowed the small...
You would die around two weeks after infection, the first week you are rather well, and can't infect anyone, but after that your health goes downhill until death finally meets you.
The only cure is...