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Table 2 Co-receptor prediction using sequences from HIV-1 subtype C mother-to-child and heterosexual transmissions

From: HIV-1 subtype C predicted co-receptor tropism in Africa: an individual sequence level meta-analysis

 

Predicted biotype

Early

Chronic

Total (%)

X4 (%)

R5 (%)

Total (%)

X4 (%)

R5 (%)

Mother-to-child transmission

 Total sequence

1052

46 (4.4%; 95% CI − 1.5 to 6.5)

1006 (95.6%; 95% CI 93.5, 101.5)

2115

143 (6.8%; 95% CI − 10.9 to 31.5)

1972 (93.2%; 95% CI 68.5–110.9)

 Malawi (MW)

691 (65.6)

41 (5.9)

650 (94.1)

1693 (80)

63 (3.7)

1630 (96.3)

 South Africa (ZA)

11 (1.1)

0

11 (100)

151 (7.1)

61 (40.4)

90 (59.6)

 Tanzania (TZ)

49 (4.7)

3 (6.1)

46 (93.9)

1 (0.04)

0

1 (100)

 Zambia (ZM)

297 (28.2)

2 (0.7)

295 (99.3)

263 (12.4)

19 (7.2)

244 (92.8)

 Zimbabwe (ZW)

4 (0.4)

0

4 (100)

7 (0.33)

0

7 (100)

Heterosexual transmission

 Total sequences analyzed

3289

385 (11.7%; 95% CI − 1.8 to 13.9)

2904 (88.3%; 95% CI 86.4–101.8)

2480

231 (9.3%; 95% CI − 0.9 to 13.5)

2249 (90.7%; 95% CI 86.5–100.9)

 Botswana (BW)

29 (0.9)

1 (3.4)

28 (96.6)

4 (0.16)

0

4 (100)

 Ethiopia (ET)

1 (0.03)

0

1 (100)

10 (0.4)

0

10 (100)

 Kenya (KE)

1 (0.03)

0

1 (100)

22 (0.7)

0

22 (100)

 Malawi (MW)

1237 (37.6)

274 (28.5)

963 (71.5)

856 (34.3)

89 (11)

762 (89)

 Rwanda (RW)

96 (2.9)

0

96 (100)

6 (0.2)

0

6 (100)

 South Africa (ZA)

927 (28.2)

66 (7.1)

861 (92.9)

506 (20.4)

19 (3.6)

487 (96.4)

 Tanzania (TZ)

36 (1.1)

2 (5.5)

34 (94.5)

174 (7)

55 (32.4)

119 (67.6)

 Uganda (UG)

NA

NA

NA

1 (0.04)

0

1 (100)

 Zambia (ZM)

962 (29.3)

42 (4.4)

920 (95.6)

875 (35.3)

61 (7)

814 (93)

 Zimbabwe (ZW)

NA

NA

NA

26 (1)

2 (8.3)

24 (91.7)

  1. NA not available