主要病媒生物的密度和病原阳性检出率均较低。
The density of the main medical vectors and positive rate of detection of pathogens were low.
目的探讨结核性胸膜炎的检测方法，提高阳性检出率。
Objective To research the method for detection of tuberculous pleurisy and increase the positive rate of inspection.
目的建立完善军团菌分离培养的检验方法，提高阳性检出率。
Objective to establish and improve methods of isolation and cultivation of Legionella and hence to enhance the positive detection rate.
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