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1、Conclusion:The incidence of silicosis in Thailand was constantly at a high level in the last 5 years ranging from 7.1 to 20.7 per 1000 and was obviously due to the high level of silica dust exposure in the working enviro

2、nment.In addition,the study found that the incidence of pulmonary tuberculosis(PTB)among the risk workers of Thailand was 5.69per cent that near caused by both Mycobacterium tuberculosis and non Mycobacterium tuberculosi

3、s.Finally,the finding of the study that significantly associated mean of person exposure year and exposure times with tuberculin skin testing result.However,the skin test usually use for screening case.So the high accura

4、cy investigation method still need more for taking together and leading to the strongly summary service program later.The results suggested that there is a need for developing a national database for silicosis and pulmon

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