title: Interepidemic studies on arthroped-borne virus encephalitides and poliomyelitis in Kern County, California, and the Yakima Valley, Washington, 1944.
mesh_terms: D002140:California; D004660:Encephalitis; D004668:Encephalitis Viruses; D004671:Encephalitis, Arbovirus / Q000453:epidemiology* / Q000706:statistics & numerical data*; D011051:Poliomyelitis / Q000453:epidemiology* / Q000706:statistics & numerical data*; D014861:Washington
keywords: ENCEPHALITIS, EPIDEMIC/epidemiology and statistics; POLIOMYELITIS/epidemiology and statistics