Results from the Vietnam sentinal surveillance system
| HIV infection (%) | |||||
|---|---|---|---|---|---|
| 1994 | 1995 | 1996 | 1997 | 1998 | |
| IDU, injecting drug user; STD sexually transmitted disease. | |||||
| STD patients | 0.5 | 0.4 | 0.6 | 0.9 | 1.6 |
| Sex workers | 0.6 | 1.1 | 1.3 | 2.1 | 4.9 |
| IDUs | 18.2 | 19.1 | 13.6 | 17.0 | 20.7 |
| TB patients | 0.6 | 0.7 | 0.6 | 2.3 | 2.2 |
| Pregnant women | 0.01 | 0.08 | 0.03 | 0.11 | 0.10 |
| Army recruits | 0 | 0 | 0.04 | 0.11 | 0.11 |