A quantitative assessment of the efficacy of surgical and N95 masks to filter influenza virus in patients with acute influenza infection.
CLINICAL INFECTIOUS DISEASES(2009)
摘要
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.
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关键词
reverse transcription polymerase chain reaction,efficacy
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