Molecular epidemiology provides us some powerful tools to analyze the transmission and evolution of Mycobacterium tuberculosis (M. tuberculosis).
分子流行病学是研究结核分枝杆菌传播和种群进化的有力工具。
It could also be caused by genetic differences between M. tuberculosis populations in different parts of the world, she adds.
她还说，这也可能是由于世界不同地方的结核分枝杆菌种群的遗传差异造成的。
M. tuberculosis in aerosol is classified by WHO as a Risk Group organism, requiring biosafety level 3 laboratory safety precautions.
气溶胶中的结核分枝杆菌被世卫组织归类为危险生物群，需要采取3级生物安全实验室安全措施。
Methods The separation rate, growth speed and drug sensitivity test of M tuberculosis were observed to compare L J medium with improved L J medium.
方法将无淀粉LJ培养基与改良LJ培养基做比较，分别从结核菌的分离率、生长速度及药物敏感试验等方面观察。
M. tuberculosis var. hominis cmsisfed of 212 (85.8%) cases, M. bovis 21 (8.5%) cases and atypical mycobactera 14 (5.6%) cases.
在247例菌株鉴定中，人型结核杆菌212例（85.8％），牛型21例（8.5％），非典型分支杆菌14例（5.6％）；
The treatment of pulmonary tuberculosis must be persisted with a reasonable regimen with whole therapeutic period until L form of M. tuberculosis is eliminated from sputum.
作者认为，L型菌的存在提示病变有活动性，结核病的治疗必须坚持合理的全程化疗，直至痰中消灭L型菌。
Objective to research a quick, simple and highly specific method to detect the M. tuberculosis (TB).
目的：探讨一种快速、简便、特异性较强的结核菌鉴定方法。
ELISPOT is a rapid, sensitive and specific method for detecting M. tuberculosis specific t cells. It also gives objective evidence to the diagnosis of active tuberculosis.
结论ELISPOT是较灵敏和特异的快速检测结核菌感染的方法，可用于结核病的快速诊断。
But M. tuberculosis of Euro-American lineage was more likely to cause disease only in the lungs, suggesting it is less capable of causing tuberculosis meningitis in the Vietnamese population.
但是欧美世系的结核分枝杆菌导致结核病局限于肺部的可能性更高，这提示它在导致越南人群的结核型脑膜炎方面的能力更低。
An additional problem in countries where there is a significant prevalence of bovine tuberculosis is the differentiation between M. tuberculosis and M. bovis.
另外，在牛结核高流行国家，如何区分牛分支杆菌和结核分支杆菌，也是一个问题。
Conclusion DNA chip technology has high sensitivity and specificity in detection of rifampin-resistant M. tuberculosis and may be applied in clinical diagnosis.
结论用DNA芯片检测结核菌对利福平的耐药性具有较高的特异性和敏感性，可用于临床结核菌耐药性检测。
The researchers also found that plasminogen activator inhibitor type 2 (PAI2), a serine-protease inhibitor, inhibited proteolytic truncation of annexin-1 in macrophages infected with M. tuberculosis.
研究者还发现2型纤维蛋白溶酶原激活因子抑制物(PAI2)(一种丝氨酸蛋白酶抑制物)抑制结核杆菌感染的巨噬细胞内的膜联蛋白- 1的蛋白水解作用。
The pulmonary macrophages are the body's primary defence mechanism to contain M. tuberculosis.
肺泡巨噬细胞是人体防御肺结核类疾病的基本保障。
Conclusions the phage based splitting assay can detect the M. tuberculosis easily and quickly in two days with high sensitivity and specificity.
结论噬菌体裂解法可以简便、快速地检测结核分支杆菌，并且具有较高的敏感性和特异性。
Objective To explore methodology of DNA fingerprinting technique and its application in identification of strains of M. tuberculosis.
目的探讨结核分支杆菌DNA指纹技术的方法学及其在结核分支杆菌菌株鉴定中的应用。
Objective To illustrate the primary drug resistance of M. tuberculosis in ZhengZhou, during 1992 ~ 1996.
目的了解郑州市1992 ~ 1996年结核分支杆菌原发耐药性。
Objective: To illustrate the primary drug resistance of M. tuberculosis in Zhengzhou, during 1992 1996.
目的：了解郑州市1992 ~ 1996年结核分枝杆菌原发耐药性。
Objective To compare influence of various DNA fixation methods on hybridization of PCR products of M. tuberculosis.
目的比较各种DNA固定方法对结核分枝杆菌pcr产物杂交结果的影响。
Objective to study the susceptibility to drugs of proportion method and absolute concentration method of M. tuberculosis (MTB).
目的对比研究比例法和绝对浓度法测定结核分支杆菌的药物敏感性。
Methods M. tuberculosis strains were isolated from sputum specimens and cultured with double-phase Kuang ′s agar medium. Rifampin resistant and dependent M. tuberculosis strains were detected.
方法采用双向匡氏琼脂培养基分离痰结核菌并作耐药性和依赖性测定。
Conclusion The RAPD fingerprinting was a rapid, precise method to type M. tuberculosis strains.
结论RAPD指纹分型是一种较好的分型方法。
Conclusion The RAPD fingerprinting was a rapid, precise method to type M. tuberculosis strains.
结论RAPD指纹分型是一种较好的分型方法。
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