title: Investigations concerning the transmission of psittacosis by two species of Dermacentor (Ixodoidea, ixodidae).
mesh_terms: D000818:Animals; D001179:Arthropod Vectors; D009956:Psittacosis / Q000453:epidemiology*; D011817:Rabbits; D051381:Rats; D013987:Ticks; D015047:Zoonoses