In fact, vector control is the one and only preventive measure.

事实上，病媒控制是唯一的预防措施。

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ConclusionTo put the students of the middle and primary school as the objects of preventive TB treatment is an essential measure to control TB.

结论把中、小学生作为结核病预防治疗对象，是控制结核病流行的重要措施。

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Active control is to analyses in advance the possibility of objective deviation, and to draw up and adopt every preventive measure, so that planned objective can be realized successfully.

主动控制就是预先分析目标偏离的可能性，并拟订和采取各项预防性措施，使计划目标得以顺利实现。

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