Table 5. Seroprevalence and maternal-fetal transmission rate in the Tarija health facilities.
| Department of TARIJA | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | TOTAL |
| Tarija and surroundings | |||||||
| Tested women (seroprevalence %) | 2380 (41%) | 4113 (39%) | 4420 (35%) | 4165 (32%) | 5101 (34%) | 4705 (36%) | 24884 (36%) |
| Pos./screened children (Trasm. Rate %) | 16/639 (3%) | 35/1091 (3%) | 22/734 (3%) | 9/683 (1%) | 28/1348 (2%) | 25/1714 (1%) | 135/6209 (2%) |
| Chaco Area | |||||||
| Tested women (seroprevalence %) | 995 (49%) | 1925 (44%) | 2401 (46%) | 3120 (47%) | 3223 (40%) | 3376 (42%) | 15040 (44%) |
| Pos./screened children (Trasm. Rate %) | 8/280 (3%) | 20/687 (3%) | 25/823 (3%) | 28/697 (4%) | 24/803 (3%) | 32/871 (4%) | 137/4161 (3%) |
| Bermejo (non endemic area) | |||||||
| Tested women (seroprevalence %) | 312 (28%) | 728 (28%) | 766 (27%) | 818 (28%) | 2624 (28%) | ||
| Pos./screened children (Trasm. Rate %) | 3/50 (6%) | 4/121 (3%) | 3/131 (2%) | 0/76 (0%) | 10/378 (3%) |