Efficacy of liquid spray decontaminants for inactivation of Bacillus anthracis spores on building and outdoor materials.

Abstract:

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.

journal_name

J Appl Microbiol

authors

Wood JP,Choi YW,Rogers JV,Kelly TJ,Riggs KB,Willenberg ZJ

doi

10.1111/j.1365-2672.2011.04980.x

subject

Has Abstract

pub_date

2011-05-01 00:00:00

pages

1262-73

issue

5

eissn

1364-5072

issn

1365-2672

journal_volume

110

pub_type

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