Besides Yersinia pestis (see plague) the Yersinia group of bacteria also includes two species frequently causing illness (mainly enteritis) in humans; Yersinia enterocolitica and Yersinia pseudotuberculosis.
V skupino bakterij Yersinia spadata poleg Yersinia pestis (glejte kugo) tudi dve vrsti, ki pogosto povzročata bolezen (pretežno enteritis) pri ljudeh: Yersinia enterocolitica in Yersinia pseudotuberculosis.