Enact a new rule, “Diseases”:-

Each Villager has zero or more Diseases, tracked privately by the Doctor. When a Villager catches a Disease, the Doctor must privately inform them of this fact.

The Diseases a Villager may have are:-

• Ague
• The Black Death
• The Pox
• Toothache

At any time, the Doctor may Walk the Village by posting a blog entry to this effect: upon doing so, any Villager who has not yet been Inspected during this dynasty becomes Inspected, and has a 10% chance of catching a random Disease. (These random determinations are made privately by the Doctor using a method of his choosing.)