Facemasks for Source Control: Testing Influenza Transfer to Bedside Tables

dc.contributor.authorBiggio, Adrianeen
dc.contributor.authorRaczynski, Michael E.en
dc.contributor.authordeValpine, Maria G.en
dc.contributor.authorNagy-Agren, Stephanie E.en
dc.date.accessioned2022-02-16T14:28:17Zen
dc.date.available2022-02-16T14:28:17Zen
dc.date.issued2021-07-01en
dc.date.updated2022-02-16T14:28:14Zen
dc.description.abstractBackground: Research testing human study participants regarding the effectiveness of face masks in preventing influenza transfer or transmission is limited. In this pilot study, we investigated the following question: In influenza-positive veterans, what is the effect of face-mask wearing in comparison to not wearing a face mask on influenza transfer to bedside tables measured for 2 hours per condition over a 10-week period during the 2019–2020 influenza season. Methods: Influenza-positive veterans with influenza symptom onset ≤ 120 hours admitted to the Salem Veterans Affairs Medical Center were recruited to participate in this study. Exclusion criteria included critical illness requiring an oxygen mask or intubation. The Precept® FluidGard® 160 Procedure Mask 15300, Precept Medical Products, Inc., Arden, NC was worn by all participants during the two-hour intervention period. Surface swabs were used to measure the presence of influenza on bedside tables. CDC/NIOSH tested for influenza A and B from surface samples and facemasks using real-time polymerase chain reaction (PCR) assay (TaqMan ThermoFisher Scientific). Demographic information was collected (Table 1). A study questionnaire collected qualitative data on tolerability and feasibility of wearing a facemask when hospitalized with influenza. Institutional Review Board approval was granted. Results: From January 2, 2020, to March 11, 2020, 8 participants completed the study. Mean age was 67 years, all were male. Of these 8 participants, 6 had influenza A and 2 had influenza B. Half were diabetic; all received oseltamivir. Relative room humidity ranged from 15.6% to 39.8%. Neither influenza A nor B was detected by qPCR on bedside tables for any of the 8 participants under either face-mask–wearing condition. All participants reported that wearing the face mask was easy or very easy; of these, 5 reported experiencing warmth from the mask. Also, 50% of participants selected 2 hours as the time they could tolerate wearing a mask; the other 25% specified they could wear the face mask for 3 hours or 5 hours or more, respectively. Conclusions: In this pilot study, we demonstrated that wearing face masks is a tolerable infection control practice for providing source control for inpatients with influenza and will guide future research. Because a major limitation was the small size of the study, associated with lack of viral capture, a larger study is planned. Using face masks for source control among inpatients with influenza and other respiratory virus infections should be considered a standard infection control practice.en
dc.description.notesYes (Peer reviewed?)en
dc.description.versionPublished versionen
dc.format.extentPages s77-s77en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1017/ash.2021.151en
dc.identifier.eissn2732-494Xen
dc.identifier.issn2732-494Xen
dc.identifier.issue1(S1), S77-S77en
dc.identifier.orcidNagy-Agren, Stephanie [0000-0003-2481-196X]en
dc.identifier.urihttp://hdl.handle.net/10919/108373en
dc.identifier.volume1en
dc.language.isoenen
dc.publisherAntimicrobial Stewardship & Healthcare Epidemiologyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleFacemasks for Source Control: Testing Influenza Transfer to Bedside Tablesen
dc.title.serialAntimicrobial Stewardship & Healthcare Epidemiologyen
dc.typeConference proceedingen
dc.type.dcmitypeTexten
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/VT Carilion School of Medicineen
pubs.organisational-group/Virginia Tech/VT Carilion School of Medicine/Internal Medicineen
pubs.organisational-group/Virginia Tech/VT Carilion School of Medicine/Internal Medicine/General IMen

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