Smallpox

From D&D Wiki

Name: Smallpox (Ex)
Infection DC: 18 (Contact, Inhalation)
Incubation: 1-4 days
Damage: Nauseated or exhausted, possible ability damage

Smallpox may have been eradicated in our world, but during the Middle Ages it was an unrepentant killer. Known as alastrim, cotton pox, white pox, and milk pox, it was common throughout the history of the world. (In later years it may have been known as the Cuban itch.)

It causes fever, muscle pain, headache, nausea, and vomiting; within 12-15 days small white lesions appear in and around the mouth, these will grow and rupture. The white lesions may spread across the body and then stop.

If the PC fails the check by more than 5 points, s/he becomes exhausted instead of fatigued.

If the PC fails the check by more than 10 points, s/he suffers 1d6 Constitution damage.