The Central Hospital was a hospital in the capital city of Quarra. This hospital was responsible for the processing and treatment of guest workers in the city.
During processing, the workers were examined by Quarantine Control. In less common cases, the workers would be processed through Division 6, the neuropathology department.
In 2377, over a hundred crew members of the USS Voyager were processed through this division, with them being exposed to invasive engrammatic resequencing procedures, which partially wiped some of their memories, and having fake memories inserted which made them think they had come to Quarra voluntarily. (VOY: "Workforce", "Workforce, Part II")