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Rickettsiae are strictly intracellular bacteria belonging to the Rickettsiaceae family. They are transmitted by various… Expand Uninucleate and multinucleate stages of a protozoan parasite are described from cultured abalone Haliotis iris Martyn, 1784 in… Expand A rickettsia-like organism isolated from infected, farm-reared Cherax quadricarinatus was cultured in the yolk sac of developing… Expand Heartwater is a disease of domestic ruminants normally caused by the rickettsial pathogen Cowdria ruminantium. Traditional… Expand Open lung biopsies from three patients with Legionnaires' disease were examined by light and transmission electron microscopy… Expand physalis leporispalustris ticks removed from indicator rabbits near Richmond, Ontario, Canada, was reported in 1967 . On the… Expand