title: [Changes in activity of natural foci of plague in Tuva region].
authors.forename: D B
authors.initials: DB
authors.lastname: Verzhutskiĭ
mesh_terms: D000818:Animals; D010930:Plague / Q000382:microbiology / Q000517:prevention & control*; D012426:Russia; D012589:Sciuridae / Q000382:microbiology*; D015010:Yersinia pestis / Q000302:isolation & purification*; D015047:Zoonoses