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Inactivation of Burkholderia pseudomallei on environmental surfaces using spray‐applied, common liquid disinfectants
Author(s) -
Calfee M.W.,
Wendling M.
Publication year - 2015
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/lam.12487
Subject(s) - burkholderia pseudomallei , microbiology and biotechnology , melioidosis , bacteria , burkholderia , chemistry , biology , genetics
Five commercially available liquid antimicrobials were evaluated for their ability to decontaminate common environmental surface materials, contaminated with Burkholderia pseudomallei , using a spray‐based disinfectant delivery procedure. Tests were conducted at both an ambient temperature ( c . 20°C) and a lower temperature ( c . 12°C) condition. Nonporous materials (glass and aluminium) were more easily decontaminated than porous materials (wood, concrete and carpet). Citric acid (1%) demonstrated poor efficacy in all test conditions. Bleach (pH‐adjusted), ethanol (70%), quaternary ammonium and PineSol ® , demonstrated high (>6 log 10 reduction) efficacies on glass and aluminium at both temperatures, but achieved varying results for wood, carpet and concrete. Temperature had minimal effect on decontamination efficacy during these tests. Significance and Impact of the Study Much of the antimicrobial efficacy data for pathogenic micro‐organisms are generated with testing that utilizes hard nonporous surface materials. These data are not directly translatable for decontaminant selection following an incident whereby complex and porous environmental surfaces are contaminated. This study presents efficacy data for spray‐applied antimicrobial liquids, when used to decontaminate common environmental surfaces contaminated with Burkholderia pseudomallei . These data can help responders develop effective remediation strategies following an environmental contamination incident involving B. pseudomallei .