| psittacosis in manitoba. | paired blood specimens submitted to the virus laboratory, between january and september 1970, from 200 patients with a lower respiratory tract infection were examined for antibodies to the psittacosis-human pneumonitis group antigen. a high static titre of antibodies was found in four patients and a rising titre in three. the illness varied in the seven patients, tending to be severe, chronic and recurrent. all patients recovered following a course of antibiotic therapy which was repeated in fou ... | 1971 | 5574057 |