Table 3.
Total number of school-aged children and population-adjusted prevalence for each infectious species in sub-Saharan Africa by year
|
2010 |
2014 |
2019 |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Population (in 1000s) | Schistosomiasis (%) | S haematobium (%) | S mansoni(%) | Population (in 1000s) | Schistosomiasis (%) | S haematobium (%) | S mansoni(%) | Population (in 1000s) | Schistosomiasis (%) | S haematobium (%) | S mansoni(%) | |
| Angola | 5321 | 32·2% (21·4–41·3) | 26·6% (16·4–36·4) | 6·0% (4·0–16·9) | 6488 | 19·6% (12·8–31·9) | 14·9% (8·7–26·8) | 4·8% (3·0–10·5) | 7721 | 12·9% (7·5–23·1) | 9·7% (5·2–18·6) | 2·8% (1·8–8·8) |
| Benin | 2366 | 36·7% (33·1–41·8) | 34·3% (30·8–39·2) | 3·4% (2·6–5·1) | 2689 | 21·0% (18·6–24·7) | 19·1% (16·5–22·8) | 2·4% (1·8–3·3) | 3037 | 12·6% (10·9–15·7) | 11·7% (10·0–14·7) | 1·0% (0·7–1·5) |
| Botswana | 407 | 12·5% (7·7–19·8) | 10·6% (5·9–17·4) | 2·1% (1·0–4·3) | 435 | 7·2% (4·6–12·8) | 5·5% (2·8–10·4) | 1·8% (0·9–3·5) | 474 | 5·0% (2·6–9·8) | 3·7% (1·7–8·4) | 1·2% (0·6–2·9) |
| Burkina Faso | 4444 | 17·5% (14·2–21·3) | 15·7% (12·6–19·7) | 1·9% (1·2–3·2) | 5178 | 5·7% (4·5–7·7) | 4·8% (3·7–6·6) | 1·0% (0·6–1·8) | 5900 | 4·0% (3·0–5·5) | 3·4% (2·6–4·7) | 0·5% (0·3–1·2) |
| Burundi | 2256 | 4·8% (3·3–7·8) | 1·7% (0·6–4·8) | 3·1% (2·3–4·4) | 2669 | 2·7% (1·9–4·3) | 0·5% (0·2–1·8) | 2·0% (1·5–3·0) | 3211 | 1·5% (1·0–2·2) | 0·3% (0·1–1·2) | 1·1% (0·8–1·6) |
| Cameroon | 5191 | 15·5% (13·6–17·8) | 10·6% (9·3–12·6) | 5·4% (4·4–6·9) | 5977 | 9·1% (7·8–10·7) | 4·9% (4·2–6·2) | 4·2% (3·5–5·5) | 6746 | 5·0% (4·3–6·1) | 2·9% (2·3–3·5) | 2·1% (1·6–2·9) |
| Central African Republic | 1204 | 44·6% (34·1–57) | 25·7% (17·1–38·8) | 24·3% (17·1–35·2) | 1304 | 33·4% (24·9–45·7) | 14·4% (8·0–25·2) | 21·0% (14·9–32·4) | 1369 | 28·2% (19·9–40·7) | 11·2% (5·3–22·4) | 18·5% (12·7–29·1) |
| Chad | 3361 | 40·9% (37·0–45·3) | 37·9% (34·0–42·4) | 4·9% (3·6–7·1) | 3949 | 27·1% (24·3–31·1) | 23·8% (20·9–27·3) | 4·3% (3·0–6·2) | 4514 | 20·1% (17·8–22·5) | 18·0% (15·7–20·4) | 2·6% (1·8–3·9) |
| Congo | 1008 | 7·8% (6·1–10·5) | 6·9% (5·3–9·9) | 0·8% (0·5–1·4) | 1186 | 3·8% (2·9–5·6) | 3·2% (2·3–4·8) | 0·6% (0·3–1·4) | 1362 | 2·2% (1·6–3·2) | 1·8% (1·3–2·9) | 0·3% (0·2–0·7) |
| Côte d'Ivoire | 5228 | 21·5% (20–23·4) | 12·5% (11·0–14·1) | 10·3% (9·2–11·8) | 5747 | 13·7% (12·6–14·9) | 5·7% (4·9–6·5) | 8·5% (7·6–9·4) | 6341 | 9·6% (8·7–10·8) | 4·1% (3·4–5) | 5·7% (5–6·7) |
| Democratic Republic of the Congo | 18 004 | 24·6% (22·4–26·8) | 15·3% (13·5–17·4) | 11·2% (9·7–13·2) | 21 646 | 17·9% (16·1–19·7) | 8·2% (7·3–9·5) | 10·4% (9·1–12·2) | 25 684 | 10·3% (9·3–11·8) | 4·9% (4·3–5·8) | 5·7% (4·7–6·7) |
| Djibouti | 165 | 13·9% (1·3–56·7) | 10·8% (1·0–54·5) | 0·9% (0·0–20·8) | 163 | 6·0% (0·5–43·1) | 4·0% (0·2–35·9) | 0·6% (0·0–19·4) | 169 | 4·0% (0·4–32·7) | 3·0% (0·2–30·1) | 0·4% (0–9·9) |
| Equatorial Guinea | 281 | 3·7% (1·9–8·3) | 2·0% (1·0–4·5) | 1·6% (0·5–4·9) | 344 | 2·0% (1·0–4·3) | 0·7% (0·3–1·6) | 1·3% (0·5–3·2) | 414 | 1·5% (0·6–3·3) | 0·5% (0·2–1·4) | 0·8% (0·3–2·7) |
| Eritrea | 1184 | 6·9% (4·7–9·7) | 2·4% (0·9–5·6) | 4·4% (3·3–6·2) | 1486 | 5·4% (3·9–7·8) | 1·0% (0·3–3·4) | 4·4% (3·2–5·6) | 1572 | 2·2% (1·4–3·9) | 0·5% (0·1–1·8) | 1·6% (1·2–2·7) |
| Eswatini | 269 | 4·2% (3·0–5·9) | 2·2% (1·3–3·4) | 1·9% (1·2–3·1) | 279 | 2·3% (1·6–3·3) | 0·8% (0·5–1·3) | 1·5% (0·9–2·5) | 283 | 1·3% (1·0–2·1) | 0·5% (0·3–0·8) | 0·9% (0·6–1·6) |
| Ethiopia | 22 766 | 16·4% (11·9–24·1) | 10·3% (5·4–17·4) | 6·8% (5·7–8·7) | 24 497 | 11·0% (7·9–16·3) | 5·1% (2·2–9·9) | 6·3% (5·0–7·8) | 26 358 | 6·5% (4·8–10·7) | 3·1% (1·6–7·3) | 3·4% (2·5–4·7) |
| Gabon | 372 | 18·5% (12·1–33·7) | 12·6% (8·3–17·3) | 6·4% (1·7–25·7) | 422 | 11·4% (6·6–34·6) | 5·9% (3·4–9·2) | 5·7% (1·5–30·2) | 506 | 8·0% (4·1–27·3) | 3·7% (2·3–6·3) | 4·2% (0·9–24·6) |
| Gambia | 457 | 10·0% (8·0–12·5) | 9·7% (7·7–12·3) | 0·3% (0·1–0·9) | 523 | 4·9% (3·7–6·5) | 4·6% (3·5–6·0) | 0·2% (0·1–0·6) | 606 | 2·8% (2·1–3·7) | 2·7% (2·0–3·6) | 0·1% (0·0–0·3) |
| Ghana | 6035 | 24·1% (20·4–27·8) | 19·7% (16·6–23·2) | 5·3% (3·2–7·9) | 6562 | 12·7% (10·6–16·4) | 9·1% (7·3–11·2) | 4·0% (2·6–6·8) | 7234 | 8·5% (6·9–10·9) | 6·2% (4·9–8·0) | 2·2% (1·4–4·1) |
| Guinea | 3053 | 45·8% (38·8–51·6) | 22·8% (15·8–29·4) | 31·8% (25·7–39·6) | 3366 | 38·5% (32·2–47·6) | 12·7% (8·5–18·4) | 29·6% (23·0–37·8) | 3697 | 32·6% (27·7–38·5) | 9·5% (5·8–14·3) | 25·2% (19·9–31·2) |
| Guinea-Bissau | 420 | 15·0% (8·5–38·0) | 8·9% (6·4–13·6) | 6·4% (0·8–30·0) | 478 | 9·0% (4·0–26·6) | 4·0% (2·8–6·3) | 4·7% (0·5–23·0) | 544 | 5·3% (2·6–18·4) | 2·6% (1·6–4·0) | 2·8% (0·4–16·7) |
| Kenya | 10 978 | 15·7% (11·3–27·0) | 10·7% (6·4–22·3) | 5·6% (4·4–7·0) | 12 327 | 9·7% (7·2–15·0) | 5·3% (3·0–11·6) | 4·5% (3·7–5·7) | 13 192 | 5·9% (4·0–11·6) | 3·4% (1·7–9·4) | 2·5% (2·0–3·9) |
| Lesotho | 422 | 4·4% (0·8–21·1) | 3·1% (0·4–20·3) | 0·6% (0·1–6·5) | 420 | 2·2% (0·4–11·7) | 1·3% (0·1–10·2) | 0·4% (0·1–3·5) | 414 | 1·3% (0·3–9·5) | 0·9% (0·1–9·5) | 0·2% (0·0–1·8) |
| Liberia | 982 | 42·1% (36·4–48·5) | 21·7% (15·7–29·6) | 26·1% (21·8–32·4) | 1130 | 29·6% (25·4–34·5) | 10·9% (6·9–16·3) | 20·9% (17·6–25·7) | 1237 | 24·0% (19·6–29·9) | 9·0% (5·6–14·7) | 16·0% (13·5–19·6) |
| Madagascar | 5674 | .. | .. | .. | 6258 | .. | .. | .. | 6838 | 29·4% (20·0–41·7) | 12·2% (8·5–16·5) | 18·5% (11·1–29·6) |
| Malawi | 4200 | 36·0% (33·6–38·4) | 31·0% (28·7–33·3) | 7·3% (6·1–8·9) | 4882 | 19·5% (18·1–21·3) | 15·1% (13·7–16·8) | 5·1% (4·4–6·3) | 5421 | 11·0% (10·0–12·0) | 9·0% (8·1–10·1) | 2·2% (1·8–2·8) |
| Mali | 3918 | 39·8% (36·5–42·9) | 36·1% (32·8–39·5) | 6·7% (5·2–8·5) | 4729 | 22·8% (19·9–26·0) | 19·4% (16·4–22·2) | 4·2% (3·1–5·9) | 5492 | 17·2% (14·9–19·9) | 14·6% (12·3–17·2) | 3·0% (2·2–4·0) |
| Mauritania | 915 | 30·3% (25·2–37) | 27·7% (23·1–34·7) | 3·5% (2·0–6·2) | 1040 | 18·0% (14·7–22·2) | 15·5% (12·6–19·8) | 2·6% (1·4–4·6) | 1189 | 13·2% (10·3–16·6) | 11·6% (8·9–14·8) | 1·7% (0·8–3·2) |
| Mozambique | 6544 | 42·9% (33·1–50·8) | 34·3% (25·7–43·4) | 11·7% (6·6–20·3) | 7599 | 28·6% (21·0–36·5) | 20·8% (14·6–28·4) | 9·6% (4·9–17·3) | 8562 | 22·1% (16·3–28·6) | 16·1% (11·6–23·1) | 6·7% (3·1–13·2) |
| Namibia | 542 | 24·1% (19·0–32·5) | 19·2% (15·0–28·0) | 5·4% (3·7–13·7) | 571 | 14·7% (11·2–23·1) | 9·9% (7·3–17·7) | 5·0% (3·4–11·2) | 644 | 10·0% (7·7–18·2) | 7·1% (5·0–14·9) | 2·8% (1·9–6·1) |
| Niger | 4509 | 21·2% (18·8–23·7) | 20·2% (17·9–22·6) | 1·2% (0·6–2·5) | 5574 | 9·0% (7·8–10·5) | 8·3% (7·2–9·9) | 0·7% (0·3–1·6) | 6778 | 6·3% (5·3–7·7) | 5·9% (5·0–7·1) | 0·4% (0·2–1·0) |
| Nigeria | 40 014 | 23·5% (21·9–25·8) | 21·5% (19·8–23·7) | 2·7% (2·2–3·6) | 46 384 | 13·1% (11·9–14·2) | 11·1% (10·1–12·2) | 2·1% (1·7–2·9) | 52 944 | 7·7% (6·7–8·9) | 6·7% (5·9–7·9) | 1·1% (0·8–1·7) |
| Rwanda | 2225 | 2·8% (2·0–3·6) | 0·5% (0·3–1·0) | 2·2% (1·6–2·9) | 2510 | 2·0% (1·5–2·8) | 0·2% (0·1–0·5) | 1·8% (1·3–2·6) | 2770 | 1·1% (0·7–1·4) | 0·1% (0·1–0·3) | 0·9% (0·6–1·3) |
| Senegal | 3426 | 21·2% (18·9–23·9) | 19·1% (17·2–21·8) | 3·1% (2·1–5·8) | 3958 | 11·0% (9·3–13·5) | 9·1% (7·5–10·4) | 2·2% (1·4–4·5) | 4592 | 7·6% (6·3–9·2) | 6·1% (5·2–7·3) | 1·4% (0·9–2·9) |
| Sierra Leone | 1540 | 30·1% (25·3–36·5) | 13·5% (7·0–21·4) | 21·5% (17·7–25·9) | 1717 | 16·9% (13·2–21·5) | 3·8% (1·9–7·9) | 13·3% (10·3–17·1) | 1858 | 14·9% (11·3–19·5) | 2·7% (1·2–5·5) | 12·3% (9·4–17·0) |
| Somalia | 2561 | 23·0% (17·4–32·5) | 19·8% (14·0–26·0) | 4·0% (1·6–10·8) | 2911 | 14·1% (9·7–21·7) | 10·7% (7·3–15·3) | 3·4% (1·2–9·6) | 3265 | 10·0% (6·8–15·2) | 8·0% (5·3–11·6) | 2·1% (0·6–6·5) |
| South Africa | 9471 | 14·5% (10·8–19·4) | 11·6% (8·4–16·5) | 3·1% (1·8–6·6) | 10 170 | 9·0% (6·4–13·5) | 6·1% (4·4–10·3) | 2·8% (1·6–6·2) | 11 076 | 6·4% (4·7–11·4) | 4·6% (3·1–8·3) | 1·8% (1·0–5·0) |
| South Sudan | 2235 | 19·0% (15·9–22) | 9·8% (7·1–12·9) | 10·4% (8·6–12·5) | 2480 | 15·0% (12·9–17·4) | 4·8% (3·2–7·1) | 10·5% (8·5–12·4) | 2553 | 10·2% (8·3–13·2) | 3·4% (2·2–6·0) | 7·0% (5·6–8·6) |
| Sudan | 8285 | 31·3% (24·7–38·5) | 20·1% (14·4–28·2) | 14·4% (9·3–20·3) | 9127 | 22·4% (16·3–29·8) | 10·8% (7·2–17·3) | 12·6% (7·7–19·0) | 9906 | 15·6% (11·4–22·0) | 7·5% (4·5–13·1) | 8·5% (5·3–13·1) |
| Tanzania | 12 124 | 25·0% (19·8–30·1) | 17·6% (13·7–21·8) | 8·3% (5·9–11·6) | 14 381 | 16·6% (13·4–20·9) | 9·5% (7·2–12·4) | 7·6% (5·5–11·5) | 16 448 | 11·9% (9·4–15·4) | 7·1% (5·2–10·1) | 5·0% (3·5–7·4) |
| Togo | 1578 | 23·0% (20·6–25·8) | 20·8% (18·3–23·4) | 2·9% (2·3–3·7) | 1818 | 7·3% (6·4–8·7) | 6·3% (5·4–7·7) | 1·0% (0·8–1·5) | 2011 | 6·1% (5·4–7·2) | 5·2% (4·6–6·3) | 0·9% (0·7–1·1) |
| Uganda | 9930 | 19·0% (14·2–28·5) | 8·2% (2·9–17·5) | 11·6% (10·2–13·3) | 11 642 | 14·1% (11·4–20·8) | 4·1v (1·2–11·3) | 10·6% (9·3–11·9) | 13 633 | 7·3% (5·5–11·8) | 2·2% (0·6–6·6) | 5·1% (4·5–5·8) |
| Zambia | 3798 | 36·3% (32·6–39·4) | 27·3% (23·6–30·3) | 14·0% (11·1–17·0) | 4406 | 24·8% (21·6–28·9) | 14·5% (12·4–18·0) | 11·7% (9·5–14·6) | 4950 | 15·6% (13·4–18·6) | 9·9% (8·1–12·6) | 6·4% (4·9–8·3) |
| Zimbabwe | 3249 | 22·5% (20·2–24·6) | 17·7% (15·6–20·0) | 6·1% (5·1–7·3) | 3578 | 11·9% (10·4–13·3) | 7·5% (6·3–8·8) | 4·8% (3·8–6·0) | 4085 | 6·3% (5·5–7·4) | 4·2% (3·6–5·2) | 2·1% (1·6–2·8) |
| Total | 222 910 | 23·0% (22·1–24·1) | 17·4% (16·5–18·5) | 7·1% (6·5–7·6) | 255 001 | 14·5% (13·8–15·3) | 9·1% (8·6–9·9) | 6·0% (5·7–6·6) | 287 597 | 9·6% (9·1–10·2) | 6·2% (5·7–6·7) | 3·7% (3·4–4·0) |