Role of school tuberculosis demonstration screening in prevention and control of tuberculosis epidemic situation
Objective To evaluate the role of school tuberculosis demonstration screening in the preven-tion and control of tuberculosis(TB)epidemic situation.Methods First,the investigators were trained by the school TB screening techniques,the standardized quality control system that can be promoted at the primary level was established.Then,the TB demonstration screening was carried out in 18 schools in 16 districts and counties of Chongqing City by adopting the cross-sectional survey from September to November 2022,and the screening subjects were 25 968 students in the grade one of junior school,grade one,grade two and grade three of high school,and the training results and screening results were analyzed.Results A total of 530 medical and health professionals participated in the technical training of TB screening in schools,and 391 persons com-pleted the theoretical assessment,operation of tuberculin skin test(TST)and the result interpretation assess-ment,with a pass rate of 61.89％(242/391)and a basic pass rate of 12.02％(47/391).Among the 25 968 students,the strongly positive rate of TST was 13.92％,and the positive rate of Mycobacterium tuberculosis recombinant protein skin test(TBST)was 5.55％.The strongly positive rate of TST had statistically signifi-cant difference among different grades(P＜0.05).The positive rate of TBST in the grade two of high school was higher than that in the grade one,and the difference was statistically significant(P＜0.05).Through screening,12 students were found to have active tuberculosis,the discovery rate was 46.21/100 000,and the proportion of grade two of high school was maximal(75.00％),but there was no statistical difference in the discovery rate of active TB among the grade one of junior school,grade one and two of high school(P＞0.05).Conclusion The school tuberculosis demonstration screening accurately assesses the students'latent tuberculosis infection burden.
tuberculosisstudentlatent infection of mycobacterium tuberculosistuberculin skin testscreening
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