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Table 2 Circulating filarial antigens (CFA) and antibodies to Bm14 as seen in the school study

From: Urban lymphatic filariasis in the metropolis of Dar es Salaam, Tanzania

Ward No. children registered CFA Bm14
   No. testeda(% of registered) Mean age in years (range) Girl:boy ratio No. tests positive (%) No. tested (% of registered) No. tests positive (%) GMIbfor all examined GMIbfor positives only
Mchikichini 347 276 (79.5) 7.5 (5–12) 0.9 7 (2.5) 271 (78.1) 20 (7.0) 0.1474 0.7478
Buguruni 582 286 (49.1) 7.6 (5–11) 1.0 7 (2.4) 270 (46.4) 9 (3.3) 0.1249 1.5498
Vingunguti 782 303 (38.7) 7.5 (5–12) 1.1 16 (5.3) 298 (38.1) 17 (5.7) 0.1445 0.9454
Ukonga 692 299 (43.2) 7.4 (5–11) 0.8 3 (1.0) 286 (41.3) 7 (2.5) 0.0847 1.1687
Majohe 700 268 (38.3) 7.7 (6–12) 1.7 12 (4.5) 242 (34.6) 18 (7.4) 0.1368 1.1817
Chanika 552 265 (48.0) 7.8 (5–13) 1.0 5 (1.9) 255 (46.2) 10 (3.9) 0.0962 1.0394
Total 3655 1697 (46.4) 7.6 (5–13) 1.0 50 (3.0) 1622 (44.4) 81 (5.0) 0.1223 1.0338
  1. The pupils were from primary schools located in six wards in Ilala District, Dar es Salaam. All pupils tested for antibodies to Bm14 were also tested for CFA.
  2. a) Excluding 29 children with invalid tests (9, 4, 5, 2, 2, 7 from Mchikichini to Chanika, respectively).
  3. b) Geometric mean intensity in OD-values.