Solving urban tuberculosis problems considering the contact between dwellers under fragile conditions and young people

通过手持设备测量二氧化碳浓度，了解二氧化碳浓度是结核病感染的危险因素之一。观察LTBI病例数与CO2浓度的相关性。提示在结核病筛查过程中，CO2浓度可提供一种更为定量的方法。我展示了上层房间紫外线杀菌照射和负空气电离在长期护理设施中减少结核病感染的效果，并推迟了结核病病例的发现。

Carbon dioxide (CO2) measurement via handheld device was performed to investigate the CO2 concentration was one of the risk factors for TB infection. The correlation between the number of LTBI cases and the CO2 concentration was observed. The result suggested CO2concentration might provide a more quantitative method in the tuberculosis (TB) screening process. I showed the efficacy of upper room ultraviolet germicidal irradiation and negative air ionization on the reduction in TB infection in long-term care facilities with delay in TB case-finding.