TABLE 4.
vpu subtypes of the HIV-1 strains recovered from people in different risk groups in Taiwan
| Risk group | No. (%) of individuals infected with HIV-1 subtype:
|
||||||
|---|---|---|---|---|---|---|---|
| A | B | C | E | G | Unclassified | Total | |
| Hemophiliac | 0 (0) | 11 (100.0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 11 |
| Intravenous drug user | 0 (0) | 7 (70.0) | 0 (0) | 3 (30.0) | 0 (0) | 0 (0) | 10 |
| Sexual transmission | |||||||
| Women | 0 (0) | 10 (28.6) | 0 (0) | 21 (60.0)a | 3 (8.6) | 1 (2.9) | 35 |
| Men | |||||||
| Homosexual | 0 (0) | 78 (100.0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 78 |
| Heterosexual | 1 (0.7) | 82 (60.3) | 4 (2.9) | 47 (34.6)b | 2 (1.5) | 0 (0) | 136 |
| Bisexual | 0 (0) | 52 (89.7) | 0 (0) | 6 (10.3) | 0 (0) | 0 (0) | 58 |
| Unknown | 0 (0) | 28 (80.0) | 0 (0) | 7 (20.0) | 0 (0) | 0 (0) | 35 |
| Subtotal | 1 (0.3) | 240 (78.2) | 4 (1.3) | 60 (19.5) | 2 (0.7) | 0 (0) | 307 |
| Total | 1 (0.3) | 268 (73.8) | 4 (1.1) | 84 (23.1) | 5 (1.4) | 1 (0.3) | 363 |
a
In the sexual transmission group, subtype E infection was prevalent at a significantly higher proportion in the women than in the men (P < 0.0001 by the χ2 test).
b
Subtype E infection was prevalent at a significantly higher proportion in heterosexual men than in the homosexual and bisexual men (P < 0.005 by the χ2 test).