Figure 2: The location of sampling swatches on the technician. Swatches consisted of cotton fabric (arms and chest), latex (palms), denim (ankles and knees), and rubber (shoes). The 3 in. by 3 in. swatches were collected from the technician after exiting the ABT and analyzed for their biological contamination loading (number of organisms per unit area). Clothing swatches were secured by straight pins, while rubber (shoes) and latex (gloved hands) swatches were taped.