Table 2. Distribution of HIV-1 genotypes in different risk groups in China*.
| HIV-1 genotype | Risk group | Total (%) | ||||||
| IDU (%) | Heterosexual (%) | MSM (%) | FPD+BT (%) | MCT (%) | Other (%) | N/A (%) | ||
| CRF07_BC | 8,344 (48.5)[68.8] | 2595 (21.9)[21.4] | 62(8.8)[0.5] | 43 (3.3)[0.4] | 54 (18.2)[0.4] | 99 (78.0)[0.8] | 925 (34.7)[7.6] | 12122 (35.5)[100.0] |
| CRF08_BC | 4064 (23.6)[59.0] | 2082(17.6)[30.2] | 4 (0.6)[0.1] | 0 (0.0)[0.0] | 74 (25.0)[1.1] | 9 (7.1)[0.1] | 659 (24.7)[9.6] | 6892 (20.2)[100.0] |
| CRF01_AE | 3649 (21.2)[38.9] | 4709 (39.8)[50.2] | 392 (55.8)[4.2] | 41 (3.1)[0.4] | 37 (12.5)[0.4] | 3(2.4)[0.0] | 557 (20.9)[5.9] | 9388 (27.5)[100.0] |
| B' | 380(2.2)[11.6] | 1373 (11.6)[41.7] | 44 (6.3)[1.3] | 1214 (92.5)[36.9] | 101 (34.1)[3.1] | 0 (0.0)[0.0] | 177 (6.6)[5.4] | 3289 (9.6)[100.0] |
| A | 0 (0.0)[0.0] | 20 (0.2)[100.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 20 (0.1)[100.0] |
| B | 0 (0.0)[0.0] | 64 (0.5)[17.9] | 151 (21.5)[42.3] | 15 (1.1)[4.2] | 0 (0.0)[0.0] | 16 (12.6)[4.5] | 111 (4.2)[31.1] | 357 (1.0)[100.0] |
| C | 135 (0.8)[25.4] | 287 (2.4)[54.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 109 (4.1)[20.5] | 531 (1.6)[100.0] |
| G | 0 (0.0)[0.0] | 10 (0.1)[100.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 10 (0.0)[100.0] |
| CRF02_AG | 0 (0.0)[0.0] | 22 (0.2)[68.8] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 10 (0.4)[31.3] | 32 (0.1)[100.0] |
| CRF06_cpx | 0 (0.0)[0.0] | 3 (0.0)[100.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 3 (0.0)[100.0] |
| BC | 322 (1.9)[51.0] | 236(2.0)[37.4] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 0 (0.0)[0.0] | 73 (2.7)[11.6] | 631 (1.8)[100.0] |
| Other discordant genotypes | 302(1.8)[34.6] | 444 (3.7)[50.9] | 49 (7.0)[5.6] | 0 (0.0)[0.0] | 30 (10.1)[3.4] | 0 (0.0)[0.0] | 48 (1.8)[5.5] | 873 (2.6)[100.0] |
| Total | 17196 (100.0)[50.4] | 11845 (100.0)[34.7] | 702 (100.0)[2.1] | 1313 (100.0)[3.8] | 296 (100.0)[0.9] | 127 (100.0)[0.4] | 2669 (100.0)[7.8] | 34148 (100.0)[100.0] |
*
Numbers in parentheses and square brackets indicate the proportion of the HIV-infected in each subgroup as a percentage of the national total for that risk group and genotype, respectively. The estimation was done, assuming that HIV case reports reflect the actual prevalence of HIV infection in the respective risk groups and provinces (see Methods).