A Quantitative Assessment of the Efficacy of Surgical and N95 Masks to Filter Influenza Virus in Patients with Acute Influenza Infection | Zendy

Douglas Johnson | Zendy; Julian Druce | Zendy; Chris Birch | Zendy; M. Lindsay Grayson | Zendy

Open Access

A Quantitative Assessment of the Efficacy of Surgical and N95 Masks to Filter Influenza Virus in Patients with Acute Influenza Infection

Author(s) -

Douglas Johnson,

Julian Druce,

Chris Birch,

M. Lindsay Grayson

Publication year - 2009

Publication title -

clinical infectious diseases

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.44

H-Index - 336

eISSN - 1537-6591

pISSN - 1058-4838

DOI - 10.1086/600041

Subject(s) - medicine , respirator , virus , virology , reverse transcription polymerase chain reaction , polymerase chain reaction , orthomyxoviridae , influenza a virus , covid-19 , pathology , infectious disease (medical specialty) , biology , gene , messenger rna , biochemistry , materials science , composite material , disease

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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