FIG. 5.

Effect of bioburden inclusion on spore recovery from building surfaces using CD gas fumigant. Spore suspensions were prepared with different serum concentrations. Five replicate coupons were inoculated with an aliquot of 50 ml spore suspension and dried as described in Materials and Methods. The log difference was computed by subtracting the log CFU recovered from the coupons after drying and log CFU estimated in the aliquot spotted on coupons The error bars indicate standard deviations.