著者
NORIKO SHIMASAKI AKIRA OKAUE RITSUKO KIKUNO KATSUAKI SHINOHARA
出版者
The Society for Antibacterial and Antifungal Agents, Japan
雑誌
Biocontrol Science (ISSN:13424815)
巻号頁・発行日
vol.23, no.2, pp.61-69, 2018 (Released:2018-06-16)
参考文献数
20
被引用文献数
6

Exact evaluation of the performance of surgical masks and biohazard protective clothing materials against pathogens is important because it can provide helpful information that healthcare workers can use to select suitable materials to reduce infection risk. Currently, to evaluate the protective performance of nonwoven fabrics used in surgical masks against viral aerosols, a non-standardized test method using phi-X174 phage aerosols is widely performed because actual respiratory viruses pose an infection risk during testing and the phage is a safe virus to humans. This method of using a phage is simply modified from a standard method for evaluation of filter performance against bacterial aerosols using Staphylococcus aureus, which is larger than virus particles. However, it is necessary to perform such evaluations based on the size of the actual pathogen particles. Thus, we developed a new method that can be performed safely using inactivated viral particles and can quantitate the influenza virus in aerosols by antigen-capture ELISA (Shimasaki et al., 2016a) . In this study, we used three different microbial aerosols of phi-X174 phage, influenza virus, and S. aureus and tested the filter efficiency by capturing microbial aerosols for two medical nonwoven fabrics. We compared the filter efficiency against each airborne microbe to analyze the dependency of filter efficiency on the microbial particle size. Our results showed that against the three types of spherical microbe particles, the filter efficiencies against influenza virus particles were the lowest and those against phi-X174 phages were the highest for both types of nonwoven fabrics. The experimental results mostly corresponded with theoretical calculations. We conclude that the filter efficiency test using the phi-X174 phage aerosol may overestimate the protective performance of nonwoven fabrics with filter structure compared to that against real pathogens such as the influenza virus.

言及状況

外部データベース (DOI)

Twitter (73 users, 87 posts, 56 favorites)

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@jonmcgeachin @catrinmorris @marinopatrickj @nytimes Another study found that surgical masks had about 85% penetration ratio of aerosolized inactivated influenza particles and about 90% of Staphylococcus aureus bacteria, although S aureus particles were about 6x the diameter of influenza particles. https://t.co/HvCnpPFj1t
SOME of the mask studies on efficacy: https://t.co/VQVE5VcIDo #TakeOffYourMask
... embora S aureusas partículas eram cerca de 6 vezes o diâmetro das partículas da gripe https://t.co/udRUBKTynx
@OldeNaturalist https://t.co/V15JsMoLrN
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@JaredLovering @TheFinalSteve76 @stacey_rudin @naomirwolf And These: https://t.co/UDDLthc9k1 https://t.co/2VyEJQhaBE https://t.co/5aWtmvxMRG https://t.co/7RSHJRgKqz https://t.co/vbow7ugu6A https://t.co/w4yDvtqSPG https://t.co/RvmbgMWtdC https://t.co/WMD3S4uvNP https://t.co/IVw0X6FqhK https://t.co/bnaJpaqiWA
26. Comparison of filter efficacy of Medical Non-Woven Fabrics against Three Different Microbe Aerosols https://t.co/BFmjj5whB3
17  N Shimasaki, A Okaue, et al. Comparison of the filter efficiency of medical nonwoven fabrics against three different microbe aerosols. Biocontrol Sci.  2018; 23(2). 61-69. https://t.co/qG3SCwPU0V
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@MartaLokje @Opalek_Koszalek @PBasiukiewicz Ależ zbadano to wielokrotnie. https://t.co/6yQcYbU6Ob https://t.co/GN8NrwvVgA https://t.co/ykR5pCdccz
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@Ocram91074848 @Joshvoteingred @Benaskren Link 12: https://t.co/hwc3x0RuNW Link 13: https://t.co/0sjCgsj2Ut Link 14: https://t.co/TXQOGJoEH9 Link 15: https://t.co/xIK8nUsfA7 Link 16: https://t.co/9eUhSiakLX Link 17: https://t.co/NNrQOSXUAy Link 18: https://t.co/B7U6roS4Ph Link 19: https://t.co/mBVQypwesK
@mcfunny @yellostvstone @Monstercoyliar @LauraDekker1 @GeoffSchuler @_mamadeb @Landau_18901 @troydee @logieminks @ianfmusgrave @KatLaRue7 @EdDarrell @MonstaTofu @LightControl2 @StopVaxxedLies @SMcMenemin @CovidMillion @SMcwoof @markmcdougall13 @DreadPirRob42 @jkellyca @wjarbuckles1 @MacBaird13 @BeckyJohnson222 @seek_not @VileThePro @ShallowHal9 @Kelly24403519 @angela_bower @JohnMallery10 @haveaconcern @Death_is_final @KixerP @RisetteMD @KayVonPaul @Gardeniagal4 @RCPrentice @WhereJuliet @Dadsonworldwide @barryjohnreid21 @JaneEOpie @ghoppe @organicdot @Ephesians6__12 @ale_battini @carlsmythe @BoastIra @Chris_F_Carson @100Dianne @peterre76976220 so, it doesn't prevent infection, and not very well transmission, I'd bet on social distance "Surgical masks had about 85% penetration ratio of aerosolized inactivated influenza particles and about 90% of Staphylococcus aureus….[]". https://t.co/twxOi0Ne2z
@OldGuyWalkin @3coach_cheer @MichelleBrodeu2 @bdzbdz @JoyAnnReid @DeniseWinecey 17  N Shimasaki, A Okaue, et al. Comparison of the filter efficiency of medical nonwoven fabrics against three different microbe aerosols. Biocontrol Sci.  2018; 23(2). 61-69. https://t.co/GNm5wnslUg
17 N Shimasaki, A Okaue, et al. Comparison of the filter efficiency of medical nonwoven fabrics against three different microbe aerosols. Biocontrol Sci. 2018; 23(2). 61-69. https://t.co/czW2630ISH
17 Comparison of the filter efficiency of medical nonwoven fabrics against three different microbe aerosols. Biocontrol Sci. 2018; 23(2). 61-69. https://t.co/3SRGyQfevG 18 Postoperative wound infections and surgical face masks: https://t.co/VDhm14nYua
N Shimasaki, A Okaue, et al. Comparaison de l'efficacité du filtre des non-tissés médicaux avec trois aérosols microbiens différents. Biocontrol Sci. 2018; 23 (2). 61-69. https://t.co/J9hEcOXyPy
More Mask Studies https://t.co/hw9dIw3NjG https://t.co/4ZvJivCYwW https://t.co/JpqjZ9Om81 https://t.co/qpBhZg70Lb @JamesTodaroMD @inmydumpster @trikileaks @darrenmark69 @timtron2020 @NeilClark66 @Hepto1 @RJ_Phoenix16
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