Ivory Plague

The Ivory Plague was a disease that was prevalent in Kara-Tur.

Shou Lung
In Shou Lung, an outbreak of the ivory plague decimated the population of Hai Sheng, then the Imperial Capital, in Shou Year 859 (−391 DR). The first Emperor Chin of the Hai Dynasty and his household all died of the plague, with only his sister and grandson surviving. The plague continued for several years, until finally a huge ki-rin visited the city. It ordered the surviving Imperial family to flee and ended the outbreak, saving the remaining populace. Afterward, Hai Sheng was renamed Kirin in its honor and the folk there believed the city was protected by the Celestial Emperor. However, the Imperial Capital was moved to Kuo Te' Lung. Descendants of those who dealt with the ki-rin bore great resistance to common diseases thereafter. It was said that the Giants in Grey, whose appearance presaged immense tragedy, warned of the Ivory Plague, having appeared in the Imperial Compound the previous year, Shou Year 858 (−392 DR).

Koryo
In Koryo's history, the settlement of Mo'ki was affected by the ivory plague until a shukenja called Pitalla used a wish from the leaping fish to cure it.

In 1357 DR, an outbreak of the ivory plague on Saishu in Koryo saw the whole island quarantined. Despite this, foolhardy merchants smuggled supplies and goods onto the island for enormous profits.