title: [Nature, possible causes and significance of the variability of the causative agents of diseases that multiply in vectors].
mesh_terms: D000818:Animals; D001096:Arachnid Vectors / Q000469:parasitology; D001179:Arthropod Vectors / Q000469:parasitology; D004199:Disease Vectors; D004463:Ecology; D014644:Genetic Variation; D006790:Host-Parasite Interactions; D006801:Humans; D007303:Insect Vectors / Q000469:parasitology; D010271:Parasites / Q000254:growth & development / Q000472:pathogenicity*; D010272:Parasitic Diseases / Q000469:parasitology* / Q000635:transmission; D013987:Ticks / Q000469:parasitology; D014774:Virulence
vernacular_title: Kharakter, vozmozhnye prichiny i znachenie izmenchivosti vozbuditeleĭ bolezneĭ pri razmnozhenii v perenoschikakh.