Table 3. Seroprevalence and maternal-fetal transmission rate in the Cochabamba health facilities.

Department of COCHABAMBA	2004	2005	2006	2007	2008	2009	TOTAL
Cochabamba City
Tested women (seroprevalence %)	1551 (15%)	3048 (15%)	6435 (14%)	7347 (16%)	11948 (12%)	16959 (13%)	47288 (14%)
Pos./screened children (Trasm. Rate %)	6/227 (3%)	13/526 (2%)	18/527 (3%)	26/626 (4%)	13/952 (1%)	32/1488 (2%)	108/4346 (2%)
Punata area
Tested women (seroprevalence %)	420 (27%)	1017 (25%)	941 (22%)	1303 (27%)	1672 (21%)	2509 (19%)	7862 (22%)
Pos./screened children (Trasm. Rate %)	4/35 (11%)	3/84 (4%)	2/120 (2%)	3/167 (2%)	4/259 (2%)	2/183 (1%)	18/848 (2%)
Sacaba and Quillacollo area
Tested women (seroprevalence %)	918 (15%)	2140 (14%)	5448 (16%)	6935 (15%)	8674 (13%)	10603 (15%)	34718 (15%)
Pos./screened children (Trasm. Rate %)	4/111 (4%)	2/274 (1%)	16/557 (3%)	12/680 (2%)	17/653 (3%)	21/734 (3%)	72/3009 (2%)
South Cone Area
Tested women (seroprevalence %)				1175 (67%)	1382 (65%)	1421 (62%)	3978 (65%)
Pos./screened children (Trasm. Rate %)				11/277 (4%)	7/449 (2%)	17/459 (4%)	35/1185 (3%)
Chapare (non endemic area)
Tested women (seroprevalence %)			3172 (17%)	3884 (15%)	5466 (19%)	6602 (21%)	19124 (19%)
Pos./screened children (Trasm. Rate %)			2/196 (1%)	9/293 (3%)	19/692 (3%)	14/567 (2%)	44/1748 (3%)
Totora and Capinota
Tested women (seroprevalence %)				5059 (27%)	6848 (28%)	8023 (28%)	23102 (27%)
Pos./screened children (Trasm. Rate %)				20/570 (4%)	26/1141 (2%)	31/1026 (3%)	79/2933 (3%)

Tested women: number of screening tests made during prenatal controls and at delivery by IHA technique.

seroprevalence %: The seroprevalence was calculated based on positive results by IHA if dilution was ≥1/16.

Positive children: total number of positive children diagnosed at birth, before 6 months and between 6 and 12 months.

Transmission rate was calculated with positive children over children born from positive mother tested at birth.