Health & Sanitation
R
oman citizens usually enjoy good health, assuming that they have a varied diet and see a doctor regularly . They are also very paticular about keeping themselves clean. Your city can build some structures to help the public ward off disease.
If your people become unhealthy, they become more susceptible to disease. When they become diseased, they need treatment by a hospital. If there is no room in a hospital at that time, they will die.