alexa Observations on the Migration of Bacillus Spores Outside a Contaminated Facility During a Decontamination Efficacy Study
ISSN: 2157-2526

Journal of Bioterrorism & Biodefense
Open Access

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Research Article

Observations on the Migration of Bacillus Spores Outside a Contaminated Facility During a Decontamination Efficacy Study

Erin E. Silvestri1, Sarah Perkins2, Robert Lordo2, William Kovacik3, Tonya Nichols1, Charlena Yoder Bowling1, Dale Griffin4*and Frank W. Schaefer1

1U.S Environmental Protection Agency, National Homeland Security Research Center, 26 W. Martin Luther King Drive, MS NG16, Cincinnati, OH 45268, USA

2Battelle Memorial Institute, 505 King Avenue, Columbus, OH 43201, USA

3Pegasus Technical Services, Inc., 46 East Hollister St., Cincinnati, OH 45219, USA

4U.S Geological Survey, Coastal and Marine Science Center, 600 4th Street South, St. Petersburg, FL 33701, USA

*Corresponding Author:
Dale Griffin
U.S Geological Survey
Coastal and Marine Science Center
600 4th Street South
St. Petersburg, FL 33701, USA
Tel: 850- 274-3566
Fax: 727-502-8001
E-mail: [email protected]

Received Date: March 24, 2015; Accepted Date: April 29, 2015; Published Date: May 06, 2015

Citation: Silvestri EE, Perkins S, Lordo R, Kovacik W, Nichols T, et al. (2015) Observations on the Migration of Bacillus Spores Outside a Contaminated Facility During a Decontamination Efficacy Study. J Bioterror Biodef 6:135 doi:10.4172/2157-2526.1000135

Copyright: © 2015 Silvestri EE, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The fate and transport of Bacillus anthracis spores in indoor and outdoor environments is not well understood. The Bio-Response Operational Testing and Evaluation exercise evaluated decontamination technologies in a twostory building experimentally contaminated with Bacillus atrophaeus subspecies globigii spores. The Bio-Response Operational Testing and Evaluation project provided a means to evaluate the potential for the spores dispersed inside the building to migrate to the outside as well as to investigate a new method for processing soils contaminated with Bacillus spores. Duplicate sterile sand samples were placed within the tent covering the building, but outside the building itself, near entrances, exits, and high-traffic areas to assess migration and deposition of newly disseminated spores. The sand samples were utilized during three stages of the decontamination study: before spore dissemination, after spore dissemination, and after decontamination of the building. In addition, two sets of sand samples placed within the building provided positive controls. Results from two different building decontamination approaches were studied. Results were tabulated as presence or absence rather than as a quantitative figure. There was no significant association among positive samples and the location of the samples around the building. There was a significant association between the different stages of each decontamination study and the number of detectable samples. The results of this study demonstrate the potential for spores to migrate out of a contaminated building and the importance of considering migration when assessing the scope of a contamination incident

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