This method samples the skin using a cylinder restricting the area of sampling to a small area covered by the drape. 1 ml of the sampling solution is applied to the sampling cylinder. The sample site is then rubbed with moderate pressure in an even grid formation with at sterile, plastic inoculation loop for 1 minute. After rubbing, the sampling solution is collected in a sterile test tube using a sterile pipette. The sampling process is then repeated, yielding another sample, which is pooled with the former.