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三、结核病在我国的流行情况(一) 结核病的流行环节结核病是由排菌的病人呼吸道尤其咳嗽或喷嚏时排出大量雾化带菌的飞沫核传染的。只有微小(1～10微米)的飞沫核才能进入易感者的肺泡或微小支气管末梢形成感染,较大的飞沫核即使吸入到呼吸道也为粘膜纤毛毡运动排到口咽被吞下或咳出,不致传染。结核菌不能侵入完整的皮肤或粘膜,据证明,病
Third, the prevalence of tuberculosis in China (A) the prevalence of tuberculosis Tuberculosis is discharged by the bacteria in the respiratory tract of patients in particular, when coughing or sneezing a large number of atomized droplets carrying droplets infected. Only tiny (1 ~ 10 microns) droplets of nucleus can enter the susceptible alveoli or tiny bronchial terminals to form an infection. Larger nuclei of the droplets, even when inhaled into the respiratory tract, also drain the mucocut into the oropharynx Cough out, not contagious. Mycobacterium tuberculosis can not invade the intact skin or mucous membrane, it is proved that the disease