Spores inoculated (log10)

Sensitivity (%)

n1

Plate count method

TSB enrichment2

1

80

98.8

96.3

2

81

100

92.6

4

81

96.3

91.0

overall

242

90.1

84.0

1sampled and directly inoculated wipes combined
2based on PCR results from TSB or isolates from subculture of TSB
Table 3: Sensitivity of plate count vs TSB enrichment.