Pestis

Although the threat of a bioterrorist attack using Yersinia pestis, the germ that causes plague, is unlikely, there are examples throughout history of Y. pestis being used as a bioweapon.

page 198: [...] a name ordinarily given, then and for ages preceding, to the bubonic pestis. page 213: Another species of pestis in Sauvages Nosology is, from the accounts of various writers on the Lues bovilla, intimately connected with that [of distemper].