title: [New progress in the development of E. N. Pavlovskiĭ's theory of the natural foci of human diseases].
mesh_terms: D000818:Animals; D004197:Disease Reservoirs; D004199:Disease Vectors; D004463:Ecology; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010272:Parasitic Diseases / Q000635:transmission; D014777:Virus Diseases / Q000635:transmission
vernacular_title: Novoe v razvitii ucheniia E. N. Pavlovskogo o prirodnoĭ ochagovosti bolezneĭ cheloveka