Table 1.

Phage 536_P1 titers on strain 536, obtained from the manual and automated drop-off methods, at four different concentrations.

Dilutions	Manual Method (Reference One)				Automated Method (Evaluated One)
	A (ND)	B (10−1)	C (10−2)	D (10−3)	A (ND)	B (10−1)	C (10−2)	D (10−3)
Rep. #1	1.00 × 109	1.00 × 108	7.33 × 106	1.53 × 106	1.07 × 109	1.33 × 108	1.33 × 107	1.13 × 106
Rep. #2	7.33 × 108	1.20 × 108	1.40 × 107	1.73 × 106	8.67 × 108	1.20 × 108	1.07 × 107	1.13 × 106
Rep. #3	1.53 × 109	1.07 × 108	1.07 × 107	2.07 × 106	1.40 × 109	1.47 × 108	1.27 × 107	1.00 × 106
Rep. #4	8.67 × 108	1.47 × 108	1.00 × 107	1.27 × 106	1.00 × 109	1.20 × 108	1.33 × 107	8.67 × 105
Mean of Rep.	1.03 × 109	1.18 × 108	1.05 × 107	1.65 × 106	1.08 × 109	1.30 × 108	1.25 × 107	1.03 × 106
SD	3.51 × 108	2.06 × 107	2.74 × 106	3.37 × 105	2.27 × 108	1.28 × 107	1.26 × 106	1.28 × 105
CV (%)	33.93	17.44	26.11	20.44	20.94	9.82	10.10	12.35
Mean CV (%)	24.48 (±7.25)				13.30 (±5.21)

ND: non-diluted, Rep.: independent replicate, SD: standard deviation, and CV: coefficient of variation.