FIG. 2.
Comparison of sampling methods for experimental room trials. Wood laminate or metal surfaces were contaminated by aerosolization of B. atrophaeus spores into the room. Duplicate samples were collected by each sampling method and were analyzed by culturing and QPCR. The bar heights indicate the means for eight samples (wood laminate) or four samples (metal), and the error bars indicate standard errors. The sample areas were as follows: BiSKit, 1 m2; SSP kit, 317 cm2; cotton swab, 100 cm2.