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. 2000 Jul;38(7):2468–2474. doi: 10.1128/jcm.38.7.2468-2474.2000

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).