Johnson D F, Druce J D, Birch C, Grayson M L
Infectious Diseases Department, Austin Health, Heidelberg, Victoria, Australia.
Clin Infect Dis. 2009 Jul 15;49(2):275-7. doi: 10.1086/600041.
We assessed the in vivo efficacy of surgical and N95 (respirator) masks to filter reverse transcription-polymerase chain reaction (RT-PCR)-detectable virus when worn correctly by patients with laboratory-confirmed acute influenza. Of 26 patients with a clinical diagnosis of influenza, 19 had the diagnosis confirmed by RT-PCR, and 9 went on to complete the study. Surgical and N95 masks were equally effective in preventing the spread of PCR-detectable influenza.
我们评估了外科口罩和N95（呼吸器）口罩在实验室确诊的急性流感患者正确佩戴时，过滤逆转录-聚合酶链反应（RT-PCR）可检测病毒的体内效果。在26例临床诊断为流感的患者中，19例经RT-PCR确诊，9例继续完成研究。外科口罩和N95口罩在预防PCR可检测流感传播方面同样有效。
