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Title: A quantitative assessment of the efficacy of surgical and N95 masks to filter influenza virus in patients with acute influenza infection.
Austin Authors: Johnson, D F;Druce, J D;Birch, Christopher;Grayson, M Lindsay 
Affiliation: Infectious Diseases
Issue Date: 15-Jul-2009
Publication information: Clinical Infectious Diseases; 49(2): 275-7
Abstract: 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.
DOI: 10.1086/600041
Journal: Clinical Infectious Diseases
Type: Journal Article
Subjects: Adult
Aged, 80 and over
Influenza, Human.prevention & control.transmission
Middle Aged
Orthomyxoviridae.isolation & purification
RNA, Viral.genetics
Respiratory Protective Devices
Reverse Transcriptase Polymerase Chain Reaction.methods
Young Adult
Appears in Collections:Journal articles

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