PMID- 26801580 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20191210 IS - 1098-5336 (Electronic) IS - 0099-2240 (Print) IS - 0099-2240 (Linking) VI - 82 IP - 7 DP - 2016 Jan 22 TI - Evaluation of the Efficacy of Methyl Bromide in the Decontamination of Building and Interior Materials Contaminated with Bacillus anthracis Spores. PG - 2003-2011 LID - 10.1128/AEM.03445-15 [doi] AB - The primary goal of this study was to determine the conditions required for the effective inactivation of Bacillus anthracis spores on materials by using methyl bromide (MeBr) gas. Another objective was to obtain comparative decontamination efficacy data with three avirulent microorganisms to assess their potential for use as surrogates for B. anthracis Ames. Decontamination tests were conducted with spores of B. anthracis Ames and Geobacillus stearothermophilus, B. anthracis NNR1Delta1, and B. anthracis Sterne inoculated onto six different materials. Experimental variables included temperature, relative humidity (RH), MeBr concentration, and contact time. MeBr was found to be an effective decontaminant under a number of conditions. This study highlights the important role that RH has when fumigation is performed with MeBr. There were no tests in which a >/=6-log10 reduction (LR) of B. anthracis Ames was achieved on all materials when fumigation was done at 45% RH. At 75% RH, an increase in the temperature, the MeBr concentration, or contact time generally improved the efficacy of fumigation with MeBr. This study provides new information for the effective use of MeBr at temperatures and RH levels lower than those that have been recommended previously. The study also provides data to assist with the selection of an avirulent surrogate for B. anthracis Ames spores when additional tests with MeBr are conducted. CI - Copyright (c) 2016 Wood et al. FAU - Wood, Joseph P AU - Wood JP AUID- ORCID: 0000-0001-6316-9418 AD - U.S. Environmental Protection Agency, Office of Research and Development, National Homeland Security Research Center, Research Triangle Park, North Carolina, USA wood.joe@epa.gov. FAU - Wendling, Morgan AU - Wendling M AD - Battelle Memorial Institute, West Jefferson, Ohio, USA. FAU - Richter, William AU - Richter W AD - Battelle Memorial Institute, West Jefferson, Ohio, USA. FAU - Lastivka, Andrew AU - Lastivka A AD - Battelle Memorial Institute, West Jefferson, Ohio, USA. FAU - Mickelsen, Leroy AU - Mickelsen L AD - U.S. Environmental Protection Agency, Office of Emergency Management, Research Triangle Park, North Carolina, USA. LA - eng GR - HIR 10-001/HX/HSRD VA/United States PT - Evaluation Study PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20160122 PL - United States TA - Appl Environ Microbiol JT - Applied and environmental microbiology JID - 7605801 RN - 0 (Disinfectants) RN - 0 (Hydrocarbons, Brominated) RN - 9V42E1Z7B6 (methyl bromide) SB - IM MH - Bacillus anthracis/*drug effects/growth & development MH - Construction Materials/*microbiology MH - Decontamination/instrumentation/*methods MH - Disinfectants/chemistry/*pharmacology MH - Fumigation MH - Hydrocarbons, Brominated/chemistry/*pharmacology MH - Spores, Bacterial/*drug effects/growth & development PMC - PMC4807506 EDAT- 2016/01/24 06:00 MHDA- 2016/12/15 06:00 PMCR- 2016/03/21 CRDT- 2016/01/24 06:00 PHST- 2015/10/28 00:00 [received] PHST- 2016/01/08 00:00 [accepted] PHST- 2016/01/24 06:00 [entrez] PHST- 2016/01/24 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] PHST- 2016/03/21 00:00 [pmc-release] AID - AEM.03445-15 [pii] AID - 03445-15 [pii] AID - 10.1128/AEM.03445-15 [doi] PST - epublish SO - Appl Environ Microbiol. 2016 Jan 22;82(7):2003-2011. doi: 10.1128/AEM.03445-15.