Cleaning of filtering facepiece respirators contaminated with mucin and Staphylococcus aureus
Identifieur interne : 001129 ( Main/Merge ); précédent : 001128; suivant : 001130Cleaning of filtering facepiece respirators contaminated with mucin and Staphylococcus aureus
Auteurs : Brian K. Heimbuch [États-Unis] ; Kimberly Kinney [États-Unis] ; April E. Lumley [États-Unis] ; Delbert A. Harnish [États-Unis] ; Michael Bergman [États-Unis] ; Joseph D. Wander [États-Unis]Source :
- American journal of infection control [ 0196-6553 ] ; 2014.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Aérosol.
English descriptors
- KwdEn :
Abstract
Background: Decontamination, cleaning, and reuse of filtering facepiece respirators (FFRs) has been proposed to mitigate an acute FFR shortage during a public health emergency. Our study evaluates the ability of commercially available wipe products to clean FFRs contaminated with either infectious or noninfectious aerosols. Methods: Three models of surgical N95 FFRs were contaminated with aerosols of mucin or viable Staphylococcus aureus then cleaned with hypochlorite, benzalkonium chloride, or nonantimicrobial wipes. After cleaning, FFRs were separated into components (nose pad, fabrics, and perforated strip), and contaminants were extracted and quantified. Filtration performance was assessed for cleaned FFRs. Results: Mucin removal was <1 log for all wipe products on all components. Inert wipes achieved ∼ 1-log attenuation in viable S aureus on fabrics from all FFR models-removal was less effective from nose pads and perforated edges. Both antimicrobial wipes achieved 3-5-log attenuation on most components, with smaller reductions on nose pads and greater reductions on perforated strips. Particle penetration following cleaning yielded mean values <5%. The highest penetrations were observed in FFRs cleaned with benzalkonium chloride wipes. Conclusions: FFRs can be disinfected using antimicrobial wipe products, but not effectively cleaned with the wipes evaluated in this study. This study provides informative data for the development of better FFRs and applicable cleaning products.
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Heimbuch</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Applied Research Associates</s1><s2>Panama City, FL</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Kinney, Kimberly" sort="Kinney, Kimberly" uniqKey="Kinney K" first="Kimberly" last="Kinney">Kimberly Kinney</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Applied Research Associates</s1><s2>Panama City, FL</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Lumley, April E" sort="Lumley, April E" uniqKey="Lumley A" first="April E." last="Lumley">April E. Lumley</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Applied Research Associates</s1><s2>Panama City, FL</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Harnish, Delbert A" sort="Harnish, Delbert A" uniqKey="Harnish D" first="Delbert A." last="Harnish">Delbert A. Harnish</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Applied Research Associates</s1><s2>Panama City, FL</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Bergman, Michael" sort="Bergman, Michael" uniqKey="Bergman M" first="Michael" last="Bergman">Michael Bergman</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>National Institute for Occupational Safety and Health</s1><s2>Pittsburgh, PA</s2><s3>USA</s3><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Pennsylvanie</region></placeName></affiliation></author><author><name sortKey="Wander, Joseph D" sort="Wander, Joseph D" uniqKey="Wander J" first="Joseph D." last="Wander">Joseph D. Wander</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Air Force Research Laboratory</s1><s2>Tyndall Air Force Base, FL</s2><s3>USA</s3><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Floride</region></placeName></affiliation></author></analytic><series><title level="j" type="main">American journal of infection control</title><title level="j" type="abbreviated">Am. j. infect. control</title><idno type="ISSN">0196-6553</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">American journal of infection control</title><title level="j" type="abbreviated">Am. j. infect. control</title><idno type="ISSN">0196-6553</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aerosols</term><term>Check</term><term>Cleaning</term><term>Contamination</term><term>Decontamination</term><term>Influenza</term><term>Mucin</term><term>Saliva</term><term>Staphylococcal infection</term><term>Staphylococcus aureus</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Staphylococcie</term><term>Grippe</term><term>Nettoyage</term><term>Contamination</term><term>Mucine</term><term>Staphylococcus aureus</term><term>Aérosol</term><term>Décontamination</term><term>Salive</term><term>Contrôle</term><term>Pandémie</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Aérosol</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Background: Decontamination, cleaning, and reuse of filtering facepiece respirators (FFRs) has been proposed to mitigate an acute FFR shortage during a public health emergency. Our study evaluates the ability of commercially available wipe products to clean FFRs contaminated with either infectious or noninfectious aerosols. Methods: Three models of surgical N95 FFRs were contaminated with aerosols of mucin or viable Staphylococcus aureus then cleaned with hypochlorite, benzalkonium chloride, or nonantimicrobial wipes. After cleaning, FFRs were separated into components (nose pad, fabrics, and perforated strip), and contaminants were extracted and quantified. Filtration performance was assessed for cleaned FFRs. Results: Mucin removal was <1 log for all wipe products on all components. Inert wipes achieved ∼ 1-log attenuation in viable S aureus on fabrics from all FFR models-removal was less effective from nose pads and perforated edges. Both antimicrobial wipes achieved 3-5-log attenuation on most components, with smaller reductions on nose pads and greater reductions on perforated strips. Particle penetration following cleaning yielded mean values <5%. The highest penetrations were observed in FFRs cleaned with benzalkonium chloride wipes. Conclusions: FFRs can be disinfected using antimicrobial wipe products, but not effectively cleaned with the wipes evaluated in this study. This study provides informative data for the development of better FFRs and applicable cleaning products.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Floride</li><li>Pennsylvanie</li></region></list><tree><country name="États-Unis"><region name="Floride"><name sortKey="Heimbuch, Brian K" sort="Heimbuch, Brian K" uniqKey="Heimbuch B" first="Brian K." last="Heimbuch">Brian K. Heimbuch</name></region><name sortKey="Bergman, Michael" sort="Bergman, Michael" uniqKey="Bergman M" first="Michael" last="Bergman">Michael Bergman</name><name sortKey="Harnish, Delbert A" sort="Harnish, Delbert A" uniqKey="Harnish D" first="Delbert A." last="Harnish">Delbert A. Harnish</name><name sortKey="Kinney, Kimberly" sort="Kinney, Kimberly" uniqKey="Kinney K" first="Kimberly" last="Kinney">Kimberly Kinney</name><name sortKey="Lumley, April E" sort="Lumley, April E" uniqKey="Lumley A" first="April E." last="Lumley">April E. Lumley</name><name sortKey="Wander, Joseph D" sort="Wander, Joseph D" uniqKey="Wander J" first="Joseph D." last="Wander">Joseph D. Wander</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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