TABLE 4 .

Probabilities of strain susceptibility in the prevalence-based collection of invasive NmB isolates

MFI cutoff	Probability of isolate with MFI above cutoff being killed (%)	% of isolates above cutoff
		Total	Subfamily A	Subfamily B
500	87.4	96.9	92	99.1
1,000	91.2	91.4	80.9	96.0
1,100	91.2	90.4	79.5	95.2
1,500	90.3	84.6	73.6	89.4
2,000	95.8	72.8	61.1	77.9