Identification of Streptococcus pneumoniae: Development of a Standardized Protocol for Optochin Susceptibility Testing Using Total Lab Automation

Table 2

DOIZs (diameters of inhibition zones) stratified by imaging time point and outcome (≥14 mm; <14 mm); bold italic font: least number of DOIZs < 14 mm; ng: no growth.

	7 h	12 h	18 h	24 h
≥14 mm	1336	1361	1283	1190
<14 mm	34	25	103	196
ng	16	0	0	0
Total	1386	1386	1386	1386