Abstract:
AIMS:To evaluate a standard aerosolization method for uniformly depositing threat-representative spores onto surfaces. METHODS AND RESULTS:Lyophilized Bacillus anthracis ΔSterne spores, coated in silica, were aerosolized into a containment chamber and deposited onto nine surface types by two independent laboratories. Laboratory A produced a mean loading concentration of 1·78 × 10(5) CFU cm(-2) ; coefficient of variation (CV) was <40% for 96% of samples. Laboratory B produced a mean loading concentration of 7·82 × 10(6) CFU cm(-2) ; 68% of samples demonstrated CV <40%. CONCLUSIONS:This method has been shown to meet the goal of loading threat-representative spores onto surfaces with low variability at concentrations relevant to the Department of Defense. SIGNIFICANCE AND IMPACT OF THE STUDY:As demonstrated in 2001, a biological attack using anthrax disseminated as a dry powder is a credible threat. This method will provide a means to load spores onto surfaces that mimic a 'real-world' scenario of an aerosolized anthrax attack. The method has utility for evaluating sporicidal technologies and for nondecontamination studies, for example fate and transport or reaerosolization.
journal_name
J Appl Microbioljournal_title
Journal of applied microbiologyauthors
Harnish D,Heimbuch BK,McDonald M,Kinney K,Dion M,Stote R,Rastogi V,Smith L,Wallace L,Lumley A,Schreuder-Gibson H,Wander JDdoi
10.1111/jam.12509subject
Has Abstractpub_date
2014-07-01 00:00:00pages
40-9issue
1eissn
1364-5072issn
1365-2672journal_volume
117pub_type
杂志文章abstract:AIMS:The purpose of this study was to compare the effects of feeding virginiamycin or bacitracin methylene disalicylate (BMD), two in-feed antibiotics typically used by commercial poultry producers in the United States, on the chicken gastrointestinal microbiota. METHODS AND RESULTS:454 pyrosequencing of the V6-V8 reg...
journal_title:Journal of applied microbiology
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更新日期:2015-12-01 00:00:00
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journal_title:Journal of applied microbiology
pub_type: 杂志文章,评审
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journal_title:Journal of applied microbiology
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journal_title:Journal of applied microbiology
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journal_title:Journal of applied microbiology
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journal_title:Journal of applied microbiology
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journal_title:Journal of applied microbiology
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更新日期:2002-01-01 00:00:00
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journal_title:Journal of applied microbiology
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journal_title:Journal of applied microbiology
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更新日期:2016-12-01 00:00:00
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journal_title:Journal of applied microbiology
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更新日期:2019-07-01 00:00:00
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journal_title:Journal of applied microbiology
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更新日期:2001-10-01 00:00:00
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journal_title:Journal of applied microbiology
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journal_title:Journal of applied microbiology
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更新日期:2009-06-01 00:00:00