Twenty-ninth chapter, where it is said how, at the time the
Spaniards left Mexico, there came an illness of pustules of which
many local people died; it was called 'the great rash' (Before the Spaniards appeared to us [again], first an epidemic
broke out, a sickness of pustules. It began in Tepeilhuitl ['which at the end of September,' according to the accompanying gloss]. Large bumps spread on people, some were entirely covered.
They spread everywhere, on the face, the head, the chest, disease) brought great desolation; a great many died of it. could no longer walk about, but lay in their dwellings and places, no longer able to move or stir. They were unable to position, to stretch out on their sides or face down, or raise heads. And when they made a motion, they called out loudly. pustules that covered people caused great desolation; very people died of them, and many just starved to death; starvation reigned, and no one took care of others any longer. On some people, the pustules appeared only far apart, they did not suffer greatly, nor did many of them die of many people's faces were spoiled by it, their faces and noses made rough. Some lost an eye or were blinded.
The disease of the pustules lasted a full sixty days; after days it abated and ended. When people were convalescing reviving, the pustules disease began to move in the direction Chalco. And many were disabled or paralyzed by it, but they not disabled forever. It broke out in Teotleco, and it abated in Panquetzaliztli. The Mexica warriors were greatly weakened
by it.4