| Author & ref. | Pub. year | Study area | Sample size | Number(%) | Specimen | DX. methods | Qua (9%) |
| Kebede & Chamso, [20] | 2000 | Ethiopia | 410 | 12(2.9) | Blood | VDRL | 7 | Mulu et al., [21] | 2007 | Ethiopia | 480 | 5(1.0) | Blood | RPR&TPHA | 7 | Tiruneh, [22] | 2008 | Ethiopia | 480 | 11(2.3) | Blood | RPR &TPHA | 7 | Ramos et al., [23] | 2011 | Ethiopia | 165 | 0(0.0) | Blood | ELISA | 5 | Assefa, [24] | 2014 | Ethiopia | 2385 | 69(2.9) | Blood | RPR& TPHA | 8 | Endris et al., [25] | 2015 | Ethiopia | 385 | 11(2.9) | Blood | RPR& TPHA | 8 | Melku et al., [26] | 2015 | Ethiopia | 300 | 11(3.7) | Blood | RPR&TPHA | 8 | Deme [27] | 2016 | Ethiopia | 574 | 2(0.3) | Blood | RPR | 7 | Fissehatsion et al., [28] | 2017 | Ethiopia | 403 | 0(0.0) | Blood | RICT | 8 | Zinabie et al., [29] | 2018 | Ethiopia | 385 | 7(1.8) | Blood | VDRL | 8 | Schönfeld et al., [30] | 2018 | Ethiopia | 580 | 13(2.2) | blood | RICT | 7 | Taiwo etal., [31] | 2007 | Nigeria | 505 | 50(9.9) | Blood | RPR&TPHA | 6 | Bukar et al., [32] | 2009 | Nigeria | 18101 | 9(0.1) | Blood | RPR&TPHA | 7 | Aboyeji [33] | 2009 | Nigeria | 230 | 4(1.7) | Blood | RPR | 6 | Buseri et al., [34] | 2010 | Nigeria | 1000 | 50(5.0) | Blood | RICT &TPHA | 5 | Mbamora et al., [35] | 2011 | Nigeria | 1393 | 8(0.6) | Blood | ELISA&TPHA | 7 | ISA et al., [36] | 2014 | Nigeria | 108 | 2(1.9) | Blood | RICT | 6 | Olowe et al., [37] | 2014 | Nigeria | 394 | 8(2.0) | Blood | RPR&TPHA | 5 | Dionne-Odomet al., [38] | 2016 | Cameron | 7069 | 120(1.7) | Blood | RICT | 7 | De Paschaleet al., [39] | 2014 | Benin | 283 | 7(2.5) | Blood | EIA | 5 | Kinoshita et al., [40] | 2008 | DRC | 529 | 0(0.0) | Blood | RPR&TPHA | 6 | Taylor et al., [41] | 2014 | DRC | 17669 | 742(4.2) | Blood | RICT &RPR | 8 | Berrueta et al., [42] D | 2017 | DRC | 4153 | 17(0.4) | Blood | RICT | 5 | Niama et al., [43] | 2017 | DRC | 2979 | 117(3.9) | Blood | RPR | 7 | Emanuael et al., [44] | 2010 | Sudan | 231 | 51(22.1) | Blood | RPR | 9 | Abdelrahim et al., [45] | 2017 | Sudan | 426 | 21(5.0) | Blood | RPR | 6 | Elkheir et al., [46] | 2018 | Sudan | 444 | 33(7.4) | Blood | RICT | 9 | Pham et al., [47] | 2005 | Zimbabwe | 2969 | 143(4.8) | Blood | RPR | 8 | Kurewa et al., [48] | 2010 | Zimbabwe | 691 | 8(1.2) | Blood | RPR&TPHA | 9 | Kwiek et al., [49] | 2008 | Malawi | 3824 | 191(5.0) | Blood | RPR&TPHA | 8 | Sombié et al., [50] | 2000 | Burkina Faso | 10980 | 26(0.2) | Blood | RPR &TPHA | 9 | Kirakoya et al., [51] | 2011 | Burkina Faso | 2136 | 64(3.0) | Blood | RPR | 5 | Urassa et al., [52] | 2001 | Tanzania | 1058 | 62(5.9) | Blood | VDRL&TPHA | 7 | Swai et al., [53] | 2006 | Tanzania | 17323 | 1265(7.3) | Blood | RPR | 8 | Yahya et al., [54] | 2008 | Tanzania | 1296 | 21(1.6) | Blood | RPR&TPHA | 9 | Manyahi et al., [55] | 2015 | Tanzania | 39698 | 992(2.5) | Blood | RPR | 7 | Lawi et al., [56] | 2015 | Tanzania | 331 | 9(2.7) | Blood | RPR& RICT | 8 | Manson et al., [57] | 2010 | Guinea | 711 | 7(1.0) | Blood | RPR | 6 | Apea-Kubi et al., [58] | 2004 | Ghana | 570 | 32(5.6) | Blood | TPHA | 6 | Blankhart et al., [59] | 1999 | CAR | 481 | 32(6.7) | Blood | RPR | 8 | Gichangi et al., [60] | 2004 | Kenya | 12414 | 372(3.0) | Blood | RPR | 6 | Marx et al., [61] | 2010 | Kenya | 441 | 13(3.0) | Blood | RPR&TPHA | 9 | Romoren, [62] | 2006 | Botswana | 465 | 23(5.0) | Blood | RPR&TPHA | 6 | Berrueta et al., [42] Z | 2017 | Zambia | 18097 | 398(2.2) | Blood | RPR | 5 |
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RPR=rapid plasma regain, TPHA=treponema palladium hama agglutination inhibition test, VDRL=venereal disease research laboratory, RICT= rapid immunochromatography test, Pub-year=publication year, Ref=reference, CAR=Central African Republic, DRC=Democratic Republic of Congo.
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