Search for: [Abstract = "f the QFT\-GIT test in diagnosis of LTBI was assessed in testing risk groups in Poland. From July 2007 to September 2009 were diagnosed by QFT\-GIT 785 subjects from the risk groups\: 150 homeless, 171 close contacts, 163 casual contacts, 152 nursing home pensioners and staff and 149 healthy subjects randomly choosen from the Crakow's population. TST was assessed in 129, 156, 147, 148 and 121 subjects respectively. The special questionnaire about past and present diseases, habits, tbc contacts and symptoms, presence of BCG scar was performed. The physical examination was done to each subject. The QFT\-GIT test was performed strictly according to recommendation of the producer \(Cellestis, Carnegie, Australia\). The blood of the subjects was taken to the three test\-tubes\: coated by specific antigens \(ESAT\-6, CFP\-10, TB7,7\), with positive control \(phytohemaglutynin\), and with negative control. TST \(2 U Rt\-23\) was done on the same day and assessed on the third day by the same, experienced nurse. The result of QFT\-GIT test \(by ELISA\) was established by the standard curve and software in the international units \(IU\). The concentration ≥ 0,35 IU\/ml was interpreted as positive. The high incidence of positive results of QFT\-GIT test in the tested groups was stated\: in the homeless 37%, close contacts 27%, casual contacts 25%, in nursing home pensioners and staff group 21% an"]

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