Evaluation of a wipe surface sample method for collection of Bacillus spores from nonporous surfaces

Article Abstract:

The polyester-rayon blend wipes were evaluated to determine the efficiency of extraction and recovery of powdered Bacillus atrophaeus spores from stainless steel and painted wallboard surfaces. The recovery efficiency and limits of detection observed in the method could provide useful guidance for the planning of incident response environment sampling following the release of a biological agent such as Bacillus anthracis.

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Monochloramine inactivation of bacterial select agents

Article Abstract:

Seven species of bacterial select agents are tested for susceptibility to monochloramine. It is found that under test conditions, the monochloramine routinely maintained in potable water reduce six of the species by two orders of magnitude within 4.2 h. Bacillus anthracis spores which require up to 3.5 days for the same inactivation with monochloramine.

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Persistence and decontamination of Bacillus atrophaeus subsp. globigii spores on corroded iron in a model drinking water system

Article Abstract:

Persistence of Bacillus atrophaeus subsp. globigii spores on corroded iron coupons in drinking water is analyzed by using a biofilm annular reactor. The studies have shown that Bacillus atrophaeus subsp. globigii spores are capable of persisting for an extended time in the presence of high levels of free chlorine.

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