title: Studies on some hitherto unknown diseases in Bulgaria with parasitological character in humans and animals.
mesh_terms: D000820:Animal Diseases / Q000453:epidemiology; D000818:Animals; D001102:Arbovirus Infections / Q000453:epidemiology*; D002031:Bulgaria; D004675:Encephalitis, Tick-Borne / Q000453:epidemiology; D006482:Hemorrhagic Fevers, Viral / Q000453:epidemiology; D006801:Humans; D007637:Keratoconjunctivitis / Q000453:epidemiology; D007896:Leishmaniasis / Q000453:epidemiology; D007922:Leptospirosis / Q000453:epidemiology; D011528:Protozoan Infections / Q000453:epidemiology*; D011778:Q Fever / Q000453:epidemiology; D012282:Rickettsia Infections / Q000453:epidemiology*; D014123:Toxoplasmosis / Q000453:epidemiology