PROBLEM TO BE SOLVED: To prevent in-hospital infection. SOLUTION: A gate control client 12 controls zone passage and records passers (Fig. 4 and S11). When a person is found infected, persons who are suspected of having infected secondarily are picked out from a record of zone passage 17 (S12). A test is performed of the person with strong possibility of having infected to check whether he or she has, in fact, infected or not (S13). From this test result and records of entry into the rooms, the source of infection is specified (S15).
展开▼