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Table 3 Follow-up of initial indeterminate donors (n = 7) by confirmatory test

From: Seroprevalence of human T-lymphotropic virus infection among blood donors in China: a first nationwide survey

No.

Province

Sex

Age

Follow-up

(day)

Supplemental tests (R/NR, S/CO or COI)

INNO-LIA

PCR result

Result

Confirmation

Discrimination

R1

R2

R3

R4

p19 I/II

p24 I/II

gp46 I/II

gp21 I/II

p19-I

gp46-I

gp46-II

177

Jiangsu

F

36

0

NR

0.43

NR

0.76

R

3.71

R

6.10

1+

UD

IND

85

NR

0.48

NR

0.54

R

4.11

R

9.50

1+

––

±

UD

HTLV-1/2

1342

Heilongjiang

M

52

0

NR

0.65

R

4.89

R

171.50

R

19.40

2+

UD

IND

250

R

1.11

R

5.51

R

142.10

N/A

±

2+

UD

HTLV-1/2

91

Heilongjiang

M

50

0

NR

0.15

NR

0.56

R

42.37

NR

0.50

1+

UD

IND

137

NR

0.17

NR

0.90

R

59.43

NR

0.40

±

UD

IND

513

Sichuan

M

37

0

NR

0.25

R

1.13

R

34.48

R

50.00

2+

UD

IND

151

NR

0.23

R

1.04

R

66.61

R

49.10

±

UD

IND

1357

Henan

M

46

0

NR

0.17

NR

0.68

R

197.10

NR

0.20

±

UD

IND

126

NR

0.12

NR

0.38

R

213.20

N/A

±

UD

IND

1439

Jiangsu

M

19

0

NR

0.21

R

2.05

R

27.30

R

1.70

±

UD

IND

302

NR

0.13

NR

0.35

NR

0.20

R

1.30

±

UD

IND

1442

Jiangsu

F

31

0

NR

0.35

R

2.85

NR

0.61

R

1.10

±

UD

IND

203

NR

0.19

R

2.91

NR

0.60

NR

0.20

UD

Negative

  1. R reactive, S/CO or COI ≥ 1.0; NR nonreactive, S/CO or COI < 1.0; UD undetected; IND indeterminate; N/A not available; F Female; M Male