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化疗的进展使传染性结核的传染期很快地缩短,对控制结核病传播有重大贡献,但也引起一危险——即对其它控制方法,特别是接触者追踪及检查,因其费时低效,而认为可以忽视。英国胸科协会研究委员会,最近指导了一项有很多中心参加的研究:从37个中心新发现的结核病人1.237例,作为指标病例;4668名密切接触者以及2731例偶然或其它接触者。在首次检查后,每年再检查一次,共观察2年,第一年受检率为75％;第二年为50％。指标病例中3/4患肺结核,其中1/4痰
The advances in chemotherapy have led to the rapid shortening of the infectious phase of infectious tuberculosis and have contributed significantly to the control of the spread of tuberculosis but have also given rise to a danger - that is, the time-consuming and inefficient treatment of other control methods, in particular contact tracing and screening, And that can be ignored. The British Thoracic Society Research Council recently conducted a study with many centers participating: 1.237 TB patients newly identified from 37 centers as index cases; 4668 close contacts and 2731 incidental or other contacts. After the first inspection, the inspection is conducted once a year for a total of 2 years. The inspection rate is 75% in the first year and 50% in the second year. Three-fourths of patients with pulmonary tuberculosis, of which 1/4 sputum