plague; pestilence

demon personifying pestilence

an expression of anger or annoyance used as a curse; a plague on him!

five chief demons of folklore personifying pestilence

to expel pestilences

The five chief demons or deities in Chinese folklore who personify and distribute pestilence, serving a similar conceptual role to the Four Horsemen of the Apocalypse.

An epidemic or infectious disease occurring during the summer heat, often characterized by high fever.

canine distemper (mammalian disease caused by Canine morbillivirus)

feline panleukopenia or feline distemper, a highly contagious and potentially fatal viral disease in cats