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调查西藏藏族人群中非典型分支杆菌的感染状况，感染率为11．45％，其中20～49岁间感染率最高（65．82％），50岁以后逐渐下降。不同性别感染率男性大于女性。反应强度以弱反应为主（≤11mm者占84．8％），未发现强反应（＞20mm）者。
To investigate the prevalence of atypical mycobacteria in Tibetans in Tibet, the infection rate was 11.45%, of which the infection rate was highest (65.82%) between the ages of 20 and 49 years and gradually decreased after the age of 50 years. Different gender infection rate of men than women. Response to the weak reaction-based (≤ 11mm accounted for 84.8%), no strong response (> 20mm) who.