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. 2006 Jun;80(12):6146–6154. doi: 10.1128/JVI.02628-05

TABLE 5.

Frequency of resistant colony formation in the presence of single or combined NS5B polymerase inhibitors

Parameter NS5B polymerase inhibitorsa
10× NNI-1 10× NNI-3 5× NNI-1, 5× NNI-3 10× NNI-1, 10× NNI-3
No. of coloniesb 2,000c 2,000c 100 10
Frequency (%)d 1.3 1.3 0.06 0.006
a

Multiple of IC50 values.

b

Values represent the average results of three independent experiments.

c

Approximate number.

d

Frequency determined as (number of colonies/initial number of cells) × 100.