Plague

Appendicitis: 0 transmission time, 0 chance of transmission, 0 radius, low chance of acquisition, high mortality.
Asthma: 0 time, 0 chance, 0 radius, low acquisition, medium mortality.
Anthrax: Medium time, low chance, small radius, low acquisition, high mortality.
Cold: Low time, high chance, medium radius, medium acquisition, 0 mortality.
Ergotism: Medium time, low chance, large radius, medium acquisition, medium mortality.
Infection: 0 transmission time, 0 chance, 0 transmission rate, medium acquisition, medium mortality.
Leprosy: Slow time, low chance, small radius, low acquisition, high mortality rate. (Banishment would be better since afflicted could live for decades, only to be killed off by secondary disease, but I can't see a way to easily do that in the code)
Lice: Quick time, high chance, medium radius, medium acquisition, 0 mortality.
Scabies: Slow transmission, medium chance, low radius, medium acquisition, 0 mortality.
Sweating Sickness: Quick time, high chance, small radius, low acquisition, high mortality.
The Black Plague: The most deadly disease in this game!