The antiviral action of common household disinfectants and antiseptics against murine hepatitis virus, a potential surrogate for SARS coronavirus
Identifieur interne : 002F01 ( Main/Exploration ); précédent : 002F00; suivant : 002F02The antiviral action of common household disinfectants and antiseptics against murine hepatitis virus, a potential surrogate for SARS coronavirus
Auteurs : Christine Dellanno [États-Unis] ; Quinn Vega [États-Unis] ; Diane Boesenberg [États-Unis]Source :
- American journal of infection control [ 0196-6553 ] ; 2009.
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- Pascal (Inist)
English descriptors
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Abstract
Background: The 2003 outbreak of severe acute respiratory syndrome (SARS) infected over 8000 people and killed 774. Transmission of SARS occurred through direct and indirect contact and large droplet nuclei. The World Health Organization recommended the use of household disinfectants, which have not been previously tested against SARS coronavirus (SARS-CoV), to disinfect potentially contaminated environmental surfaces. There is a need for a surrogate test system given the limited availability of the SARS-CoV for testing and biosafety requirements necessary to safely handle it. In this study, the antiviral activity of standard household products was assayed against murine hepatitis virus (MHV), as a potential surrogate for SARS-CoV Methods: A surface test method, which involves drying an amount of virus on a surface and then applying the product for a specific contact time, was used to determine the virucidal activity. The virus titers and log reductions were determined by the Reed and Muench tissue culture infective dose (TCID)50 end point method. Results: When tested as directed, common household disinfectants or antiseptics, containing either 0.050 % of triclosan, 0.12 % of PCMX, 0.21 % of sodium hypochlorite, 0.23 % of pine oil, or 0.10% of a quaternary compound with 79% of ethanol, demonstrated a 3-log reduction or better against MHV without any virus recovered in a 30-second contact time. Conclusion: Common household disinfectants and antiseptics were effective at inactivating MHV, a possible surrogate for SARS-CoV, from surfaces when used as directed. In an outbreak caused by novel agents, it is important to know the effectiveness of disinfectants and antiseptics to prevent or reduce the possibility of human-to-human transmission via surfaces.
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Transmission of SARS occurred through direct and indirect contact and large droplet nuclei. The World Health Organization recommended the use of household disinfectants, which have not been previously tested against SARS coronavirus (SARS-CoV), to disinfect potentially contaminated environmental surfaces. There is a need for a surrogate test system given the limited availability of the SARS-CoV for testing and biosafety requirements necessary to safely handle it. In this study, the antiviral activity of standard household products was assayed against murine hepatitis virus (MHV), as a potential surrogate for SARS-CoV Methods: A surface test method, which involves drying an amount of virus on a surface and then applying the product for a specific contact time, was used to determine the virucidal activity. The virus titers and log reductions were determined by the Reed and Muench tissue culture infective dose (TCID)<sub>50</sub> end point method. Results: When tested as directed, common household disinfectants or antiseptics, containing either 0.050 % of triclosan, 0.12 % of PCMX, 0.21 % of sodium hypochlorite, 0.23 % of pine oil, or 0.10% of a quaternary compound with 79% of ethanol, demonstrated a 3-log reduction or better against MHV without any virus recovered in a 30-second contact time. Conclusion: Common household disinfectants and antiseptics were effective at inactivating MHV, a possible surrogate for SARS-CoV, from surfaces when used as directed. In an outbreak caused by novel agents, it is important to know the effectiveness of disinfectants and antiseptics to prevent or reduce the possibility of human-to-human transmission via surfaces.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>New Jersey</li></region></list><tree><country name="États-Unis"><region name="New Jersey"><name sortKey="Dellanno, Christine" sort="Dellanno, Christine" uniqKey="Dellanno C" first="Christine" last="Dellanno">Christine Dellanno</name></region><name sortKey="Boesenberg, Diane" sort="Boesenberg, Diane" uniqKey="Boesenberg D" first="Diane" last="Boesenberg">Diane Boesenberg</name><name sortKey="Vega, Quinn" sort="Vega, Quinn" uniqKey="Vega Q" first="Quinn" last="Vega">Quinn Vega</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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