Yersinia pestis, the cause of plague, is a recently emerged clone of Yersinia pseudotuberculosis.
Proc Natl Acad Sci U S A. 1999 Nov 23;96(24):14043-8. doi: 10.1073/pnas.96.24.14043.
Proc Natl Acad Sci U S A. 1999.
PMID: 10570195
Free PMC article.