Premium
Efficacy of liquid spray decontaminants for inactivation of Bacillus anthracis spores on building and outdoor materials
Author(s) -
Wood J.P.,
Choi Y.W.,
Rogers J.V.,
Kelly T.J.,
Riggs K.B.,
Willenberg Z.J.
Publication year - 2011
Publication title -
journal of applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 1364-5072
DOI - 10.1111/j.1365-2672.2011.04980.x
Subject(s) - human decontamination , bacillus anthracis , spore , peracetic acid , hydrogen peroxide , hypochlorous acid , bacillus subtilis , log reduction , microbiology and biotechnology , disinfectant , contamination , biocide , chemistry , food science , waste management , biology , bacteria , biochemistry , ecology , genetics , organic chemistry , engineering
Aims: To obtain data on the efficacy of various liquid and foam decontamination technologies to inactivate Bacillus anthracis Ames and Bacillus subtilis spores on building and outdoor materials. Methods and Results: Spores were inoculated onto test coupons and positive control coupons of nine different materials. Six different sporicidal liquids were spray‐applied to the test coupons and remained in contact for exposure times ranging from 10 to 70 min. Following decontamination, spores were recovered from the coupons and efficacy was quantified in terms of log reduction. Conclusions: The hydrogen peroxide/peracetic acid products were the most effective, followed by decontaminants utilizing hypochlorous acid chemistry. Decontamination efficacy varied by material type. Significance and Impact of the Study: The study results may be useful in the selection of technologies to decontaminate buildings and outdoor areas in the event of contamination with B. anthracis spores. These results may also facilitate selection of decontaminant liquids for the inactivation of other spore‐forming infectious disease agents.