Table 1. Distribution of mutations with regards to NA subtype.

NA	No. of isolates (x)	Mutation	No. of mutants (y)	% (y/x)
N1		R118K	1	2.6
		R118K D151N	1	2.6
		R118K D151N D198N	1 (3) 1)	2.6 (7.7)4)
		D151K	1 2)	2.6
		I222V	1	2.6
All	39		5	12,8
N2		-	0	0.0
All	77		0	0.0
N3		R118K	1 3)	4.4
		R156K	1 2)	8.7
All	23		3	13.0
N5		R118K R152K D198N	1 3)	8.3
All	12		1	8.3
N6		R152K	6 (2) 3)	10.9
All	55		6	10.9
N8		-	0	0.0
All	13		0	0.0
N9		R118K	2	13.4
		R118K D151N	1	7.7
All	11		3	27.3
Total	230		18 (15) 4)	7.4 (6.5) 4)

Mainly adopted from Orozovic et al. [26].

¹⁾Sum of all R118K mutations.

²⁾Mutation unrelated to inhibitor resistance.

³⁾Isolates that were not analyzed.

⁴⁾Previously published values.