Table 1 Soil-transmitted helminth infection prevalence in SAC before and five or more years after initiation of preventive chemotherapy for STH in the 15 countries
WHO region | Country | N | Ascaris lumbricoides prevalence (95 CI %) | Trichuris trichiura prevalence (95 CI %) | Hookworms prevalence (95 CI %) | Any STH prevalence (95% CI) | Year of survey [data source] | Diagnostic test | Type of survey | Sampled population | Number of year of STH PC with effective coverage by 2017 | Number of years between the two data collection |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Africa | Burkina Faso | 5146 | 0 (0.-0.2) | 0.5 (0.3-0.7) | 5.6 (3.5-8.9) | 5.8 (3.7-8.9) | 2004 [EPIRF] | Kato-Katz | National baseline survey | SAC | 10 | 13 |
7124 | 0 (0-0.1) | 0 (0-0.1) | 0.3 (0.1-0.6) | 0.3 (0.1-0.6) | 2017 [EPIRF] | Follow up through LF TAS | ||||||
Burundi | 5700 | 20 | 10 | 14 | 35 | 2008 [8] | Kato-Katz | National baseline survey | SAC | 12 | 6 | |
12621 | 16.7 (14.7-18.9) | 4.7 (3.9-5.6) | 5.1 (4.4–5.9) | 22.8 (21.2–24.4) | 2014 [EPIRF] | National follow up survey | ||||||
Mali | 13318 | 0.1 (0-0.2) | 0.3 (0.2-0.5) | 7.4 (5.3-10.3) | 7.4 (5.4-10.2) | 2004 [EPIRF] | Kato-Katz | National baseline survey | SAC | 8 | 10 | |
4672 | 0 (0-0) | 0 (0- 0.2) | 0.1 (0-0.3) | 1.7 (1.2-2.5) | 2014 [EPIRF] | Follow up through LF TAS | ||||||
Ghana | 4577 | 3.02 (2.5-3.5) | 0.46 (0.26-0.66) | 3.93 (3.4-4.5) | 7.4 | 2008 [9] | Kato-Katz | National baseline survey | SAC | 5 | 6 | |
7747 | 0.8 (0.4-1.7) | 0.4 (0.2-0.8) | 1.8 (1.2-2.7) | 3.0 (2- 4.5) | 2014 [EPIRF] | National follow up survey | ||||||
Togo | 16350 | 0.3 (0.2-0.5) | 0.2 (0.2-0.3) | 31.9 (30.4-33.5) | 31 (29.6-32.4) | 2009[EPIRF] | Kato-Katz | National baseline survey | SAC | 5 | 6 | |
16890 | NA | NA | 11.1 | NA | 2015 [10] | National follow up survey | ||||||
Sierra Leone | 5069 | 7.2 (5.8-8.6) | 3.3 (2.5-4.2) | 32.5 (28.7-36.3) | 39.1 (37.8-40.5) | 2008 [11] | Kato-Katz | National baseline survey | SAC | 8 | 7 | |
3632 | 4.4 (3-6.3) | 0.8 (0.4-1.4) | 14.8 (9.8-21.8) | 18.2 (13.3-24.3) | 2015 [EPIRF] | Kato-Katz | Not specify | |||||
Cameroon | 22166 | 45.3 | 58.4 | 18 | 90.06 | Kato-Katz | National baseline survey | SAC | 10 | 25 | ||
13050 | 0.7 (0.3-1.8) | 0.6 (0.2-1.5) | 3.5 (2.7-4.4) | 4.2 (3.2-5.5) | 2012 [EPIRF] | National follow up survey | ||||||
Rwanda | 8312 | 38.6 (37.6-39.7) | 27 (26.0-27.9) | 31.7 (30.7-32.7) | 65.8 (64.8-66.8) | 2008 [14] | Kato-Katz | National baseline survey | SAC | 6 | 6 | |
9251 | 37.2 (26.9-48.9) | 22.9 (14.5-34.1) | 4.5 (3.2-6.4) | 45.2 (34.1-56.8) | 2014 [EPIRF] | National follow up survey | ||||||
Americas | Haiti | 5795 | 27.3 | 7.3 | 3.8 | 34.2 | 2002 [15] | Kato-Katz | National baseline survey | SAC | 6 | 12 |
3844 | 12.3 (11.3-13.4) | 12.1 (11.1-13.2) | 0.6 (0.4-0.9) | 22.1 (20.8-23.4) | 2014* | National follow up survey | ||||||
Mexico | 13804 | 20.25 | 15.42 | NA | NA | 2008 [16] | Kato-Katz | National baseline survey | SAC | 8 | 6 | |
4950 | 11.2 (5.6-21.2) | 3.7 (1.7-8.2) | 0.5(0.2-1.3) | 15.50(7.6-28.9) | 2015 [EPIRF] | Follow up survey | ||||||
Nicaragua | 880 | 20.7 | 34.7 | 1.4 | 46 | 2005 [17] | Kato-Katz | cross-sectional survey | SAC | 14 | 9 | |
2804 | 5.3 (2.3-11.7) | 12.8 (7.6-20.7) | 0.1(0-0.5) | 18.3 (10.8-29.2) | 2014 [EPIRF] | Follow up survey | ||||||
South-East Asia | Bangladesh | 792 | NA | NA | NA | 79.8 | 2005 [18] | Kato-Katz | National baseline survey | SAC | 6 | 12 |
6214 | 7.4 (2.2-22.2) | 2.7 (0.6 - 11) | 0.8 (0.4-1.7) | 10.9 (4.2-25.6) | 2017 [EPIRF] | Follow up survey | ||||||
Bhutan | 266 | 12.8 | 5.6 | 1.1 | 16.5 | 2003** | Kato-Katz | National baseline survey | SAC | 5 | 14 | |
1456 | 0.8 (0.3-1.2) | 0.5 (0.2-0.9) | 0.2 (0.0-0.4) | 1.4 (0.8-2.0) | 2017** | Mini-Flotac | National follow up survey | |||||
Myanmar | 1000 | 48.5 (45.3-51.6) | 57.5 (54.3-60.5) | 6.5 (5.1-8.2) | 69.7 (66.7-72.5) | 2002 [19] | Kato-Katz | National baseline survey | SAC | 12 | 10 | |
990 | 5.8 (4.4-7.2) | 18.6 (16.2-21.0) | 0.3 (0-0.6) | 20.9 (18.4-23.4) | 2012 [20] | National follow up survey | ||||||
Western Pacific | Lao People's Democratic Republic | 29846 | 34.9 | 25.8 | 19.1 | 61.9 | 2002 [21] | Kato-Katz | National baseline survey | SAC | 6 | 14 |
1341 | 7.1 (1.8-24.5) | 8.1 (1.8 - 24.5) | 17.1 (5.9-40.3) | 23.5 (8.2 - 51.5) | 2016 [EPIRF] | Follow up survey |