| Country | ISO3 | Data type | Date | fcs prevalence (%) | People (approx) |
|---|---|---|---|---|---|
| Somalia | SOM | SURVEY | 2024-03-17 | 95.30 | 15,615,302 |
| Niger | NER | SURVEY | 2023-12-04 | 84.80 | 21,946,987 |
| Haiti | HTI | SURVEY | 2026-04-17 | 74.99 | 8,914,023 |
| Haiti | HTI | SURVEY | 2026-04-10 | 74.62 | 8,870,984 |
| Haiti | HTI | SURVEY | 2026-03-20 | 74.06 | 8,803,983 |
| Haiti | HTI | SURVEY | 2026-02-27 | 73.61 | 8,750,658 |
| Haiti | HTI | SURVEY | 2026-05-01 | 73.50 | 8,736,811 |
| Haiti | HTI | SURVEY | 2026-03-13 | 73.03 | 8,680,832 |
| Haiti | HTI | SURVEY | 2025-12-04 | 72.33 | 8,598,013 |
| Haiti | HTI | SURVEY | 2025-12-25 | 72.19 | 8,581,660 |
| Haiti | HTI | SURVEY | 2025-12-18 | 71.97 | 8,555,626 |
| Haiti | HTI | SURVEY | 2025-10-12 | 71.02 | 8,442,188 |
| Haiti | HTI | SURVEY | 2026-01-08 | 70.89 | 8,426,815 |
| Haiti | HTI | SURVEY | 2025-10-11 | 70.55 | 8,386,218 |
| Haiti | HTI | SURVEY | 2026-02-06 | 68.69 | 8,165,499 |
| Yemen | YEM | SURVEY | 2026-01-08 | 65.22 | 22,281,811 |
| Yemen | YEM | SURVEY | 2026-02-06 | 63.24 | 21,605,491 |
| Yemen | YEM | SURVEY | 2025-10-11 | 62.77 | 21,444,434 |
| Yemen | YEM | SURVEY | 2025-10-12 | 62.67 | 21,409,271 |
| Yemen | YEM | SURVEY | 2025-12-25 | 62.31 | 21,288,340 |
| Yemen | YEM | SURVEY | 2025-12-18 | 61.25 | 20,925,652 |
| Yemen | YEM | SURVEY | 2025-12-04 | 60.95 | 20,821,561 |
| Yemen | YEM | SURVEY | 2026-02-27 | 60.57 | 20,692,455 |
| Yemen | YEM | SURVEY | 2026-05-01 | 59.53 | 20,338,605 |
| Chad | TCD | SURVEY | 2024-01-05 | 58.27 | 9,292,262 |
| Sierra Leone | SLE | SURVEY | 2024-03-11 | 57.05 | 4,690,536 |
| Yemen | YEM | SURVEY | 2026-04-17 | 56.91 | 19,442,562 |
| Guinea | GIN | SURVEY | 2024-01-11 | 56.32 | 6,992,096 |
| Syrian Arab Republic | SYR | SURVEY | 2025-10-11 | 56.30 | 10,116,175 |
| Syrian Arab Republic | SYR | SURVEY | 2025-10-12 | 56.17 | 10,092,899 |
| Burkina Faso | BFA | SURVEY | 2023-12-04 | 55.91 | 11,042,420 |
| Yemen | YEM | SURVEY | 2026-03-13 | 54.39 | 18,583,183 |
| Yemen | YEM | SURVEY | 2026-04-10 | 53.89 | 18,409,784 |
| Syrian Arab Republic | SYR | SURVEY | 2025-12-04 | 52.85 | 8,936,642 |
| Yemen | YEM | SURVEY | 2026-03-20 | 52.11 | 17,802,323 |
| Syrian Arab Republic | SYR | SURVEY | 2025-12-18 | 47.95 | 7,612,056 |
| Nigeria | NGA | SURVEY | 2026-02-27 | 46.51 | 73,278,841 |
| Nigeria | NGA | SURVEY | 2026-02-06 | 46.14 | 72,703,859 |
| Nigeria | NGA | SURVEY | 2026-05-01 | 45.93 | 72,367,449 |
| Syrian Arab Republic | SYR | SURVEY | 2025-12-25 | 45.64 | 7,716,796 |
| Nigeria | NGA | SURVEY | 2026-04-17 | 45.50 | 71,686,003 |
| Nigeria | NGA | SURVEY | 2026-04-10 | 44.47 | 70,075,455 |
| Nigeria | NGA | SURVEY | 2026-03-13 | 43.66 | 68,794,664 |
| Nigeria | NGA | SURVEY | 2026-03-20 | 43.37 | 68,339,697 |
| Syrian Arab Republic | SYR | SURVEY | 2026-01-08 | 42.40 | 7,168,636 |
| Nigeria | NGA | SURVEY | 2026-01-08 | 39.68 | 62,523,541 |
| Nigeria | NGA | SURVEY | 2025-12-25 | 38.85 | 61,220,013 |
| Colombia | COL | SURVEY | 2024-10-02 | 38.61 | 19,167,466 |
| Nigeria | NGA | SURVEY | 2025-12-04 | 37.55 | 59,163,348 |
| Nigeria | NGA | SURVEY | 2025-12-18 | 37.15 | 58,531,796 |
| Syrian Arab Republic | SYR | SURVEY | 2026-03-06 | 36.63 | 6,193,122 |
| Syrian Arab Republic | SYR | SURVEY | 2026-02-27 | 36.45 | 6,162,925 |
| Syrian Arab Republic | SYR | SURVEY | 2026-02-06 | 36.09 | 6,102,353 |
| Mauritania | MRT | SURVEY | 2024-03-18 | 34.05 | 1,499,498 |
| Madagascar | MDG | SURVEY | 2024-03-04 | 32.22 | 8,456,947 |
| Nigeria | NGA | SURVEY | 2025-10-12 | 32.10 | 50,572,217 |
| Nigeria | NGA | SURVEY | 2025-10-11 | 31.70 | 49,946,639 |
| Zimbabwe | ZWE | SURVEY | 2025-01-15 | 29.65 | 4,501,062 |
| Cameroon | CMR | SURVEY | 2025-12-04 | 29.58 | 7,458,379 |
| Mozambique | MOZ | SURVEY | 2023-12-04 | 28.48 | 8,399,736 |
| Cameroon | CMR | SURVEY | 2025-10-12 | 28.30 | 7,135,999 |
| Cameroon | CMR | SURVEY | 2025-10-11 | 28.24 | 7,121,991 |
| Cameroon | CMR | SURVEY | 2025-12-18 | 27.04 | 6,818,849 |
| Cameroon | CMR | SURVEY | 2026-03-13 | 26.79 | 6,755,580 |
| Cameroon | CMR | SURVEY | 2026-04-10 | 26.66 | 6,723,376 |
| Cameroon | CMR | SURVEY | 2026-04-17 | 26.64 | 6,717,265 |
| Malawi | MWI | SURVEY | 2023-12-04 | 26.57 | 4,820,530 |
| Kenya | KEN | SURVEY | 2024-01-16 | 26.49 | 13,611,711 |
| Cameroon | CMR | SURVEY | 2025-12-25 | 26.47 | 6,674,382 |
| Cameroon | CMR | SURVEY | 2026-01-08 | 26.08 | 6,575,164 |
| Cameroon | CMR | SURVEY | 2026-03-20 | 25.93 | 6,538,661 |
| Cameroon | CMR | SURVEY | 2026-02-27 | 25.87 | 6,523,465 |
| Cameroon | CMR | SURVEY | 2026-02-06 | 25.69 | 6,476,791 |
| Ukraine | UKR | SURVEY | 2026-02-06 | 24.75 | 3,453,348 |
| Cameroon | CMR | SURVEY | 2026-05-01 | 24.68 | 6,222,646 |
| Ukraine | UKR | SURVEY | 2026-02-27 | 24.27 | 3,387,567 |
| Ukraine | UKR | SURVEY | 2026-04-04 | 24.21 | 3,379,319 |
| Ukraine | UKR | SURVEY | 2026-03-20 | 24.15 | 3,370,578 |
| Ukraine | UKR | SURVEY | 2026-03-13 | 24.01 | 3,350,868 |
| Ukraine | UKR | SURVEY | 2025-12-18 | 21.94 | 3,062,032 |
| Ukraine | UKR | SURVEY | 2025-12-25 | 21.17 | 2,953,804 |
| Ukraine | UKR | SURVEY | 2025-12-04 | 21.13 | 2,949,128 |
| Ukraine | UKR | SURVEY | 2026-01-08 | 20.96 | 2,925,553 |
| Zambia | ZMB | SURVEY | 2024-01-19 | 19.17 | 3,325,604 |
| Côte d'Ivoire | CIV | SURVEY | 2024-03-15 | 17.48 | 5,136,499 |
| Ukraine | UKR | SURVEY | 2025-10-12 | 16.92 | 2,361,674 |
| Ukraine | UKR | SURVEY | 2025-10-11 | 16.88 | 2,356,278 |
| Angola | AGO | SURVEY | 2023-12-04 | 15.49 | 5,281,612 |
| Honduras | HND | SURVEY | 2025-12-04 | 11.46 | 1,098,540 |
| Ecuador | ECU | SURVEY | 2025-12-25 | 11.21 | 1,955,074 |
| Ecuador | ECU | SURVEY | 2025-12-04 | 11.17 | 1,947,837 |
| Ecuador | ECU | SURVEY | 2025-12-18 | 10.71 | 1,867,551 |
| Ecuador | ECU | SURVEY | 2026-04-15 | 9.42 | 1,643,176 |
| Ecuador | ECU | SURVEY | 2026-04-10 | 9.41 | 1,641,477 |
| Ecuador | ECU | SURVEY | 2025-10-12 | 9.34 | 1,629,041 |
| Ecuador | ECU | SURVEY | 2025-10-11 | 9.25 | 1,611,955 |
| United Republic of Tanzania | TZA | SURVEY | 2024-02-16 | 9.24 | 5,202,349 |
| Honduras | HND | SURVEY | 2025-12-18 | 8.86 | 849,385 |
| Namibia | NAM | SURVEY | 2023-12-04 | 8.77 | 201,629 |
| Ecuador | ECU | SURVEY | 2026-01-08 | 8.76 | 1,526,501 |
| Country | ISO3 | Data type | Date | rcsi prevalence (%) | People (approx) |
|---|---|---|---|---|---|
| Haiti | HTI | SURVEY | 2025-12-04 | 66.39 | 7,892,616 |
| Haiti | HTI | SURVEY | 2026-05-01 | 64.72 | 7,693,356 |
| Haiti | HTI | SURVEY | 2025-12-18 | 64.03 | 7,611,618 |
| Haiti | HTI | SURVEY | 2025-10-11 | 62.45 | 7,424,198 |
| Haiti | HTI | SURVEY | 2025-12-25 | 62.17 | 7,390,000 |
| Haiti | HTI | SURVEY | 2025-10-12 | 62.16 | 7,389,727 |
| Haiti | HTI | SURVEY | 2026-02-27 | 62.05 | 7,376,548 |
| Haiti | HTI | SURVEY | 2026-03-20 | 61.90 | 7,358,614 |
| Haiti | HTI | SURVEY | 2026-01-08 | 61.75 | 7,341,068 |
| Haiti | HTI | SURVEY | 2026-04-17 | 61.45 | 7,305,235 |
| Haiti | HTI | SURVEY | 2026-04-10 | 60.81 | 7,228,867 |
| Haiti | HTI | SURVEY | 2026-03-13 | 60.55 | 7,197,521 |
| Haiti | HTI | SURVEY | 2026-02-06 | 59.68 | 7,093,878 |
| Zimbabwe | ZWE | SURVEY | 2025-01-15 | 58.54 | 8,885,207 |
| Syrian Arab Republic | SYR | SURVEY | 2025-10-11 | 52.24 | 9,385,224 |
| Syrian Arab Republic | SYR | SURVEY | 2025-10-12 | 52.21 | 9,381,304 |
| Malawi | MWI | SURVEY | 2023-12-04 | 47.07 | 8,540,521 |
| Syrian Arab Republic | SYR | SURVEY | 2025-12-18 | 46.51 | 7,383,203 |
| Sierra Leone | SLE | SURVEY | 2024-03-11 | 44.34 | 3,645,199 |
| Syrian Arab Republic | SYR | SURVEY | 2025-12-25 | 44.27 | 7,485,106 |
| Syrian Arab Republic | SYR | SURVEY | 2025-12-04 | 43.51 | 7,357,560 |
| Syrian Arab Republic | SYR | SURVEY | 2026-01-08 | 42.58 | 7,199,800 |
| Yemen | YEM | SURVEY | 2026-03-13 | 41.69 | 14,241,932 |
| Yemen | YEM | SURVEY | 2025-10-11 | 41.35 | 14,126,804 |
| Angola | AGO | SURVEY | 2023-12-04 | 41.26 | 14,066,647 |
| Yemen | YEM | SURVEY | 2025-10-12 | 41.21 | 14,080,467 |
| Yemen | YEM | SURVEY | 2026-03-20 | 40.66 | 13,890,262 |
| Yemen | YEM | SURVEY | 2026-02-27 | 39.77 | 13,587,256 |
| Syrian Arab Republic | SYR | SURVEY | 2026-03-06 | 39.29 | 6,643,600 |
| Syrian Arab Republic | SYR | SURVEY | 2026-02-06 | 39.18 | 6,625,222 |
| Yemen | YEM | SURVEY | 2025-12-04 | 39.07 | 13,347,610 |
| Syrian Arab Republic | SYR | SURVEY | 2026-02-27 | 38.71 | 6,545,211 |
| Nigeria | NGA | SURVEY | 2025-10-11 | 37.92 | 59,755,350 |
| Nigeria | NGA | SURVEY | 2025-10-12 | 37.85 | 59,639,810 |
| Yemen | YEM | SURVEY | 2025-12-18 | 37.66 | 12,864,973 |
| Yemen | YEM | SURVEY | 2025-12-25 | 37.61 | 12,848,065 |
| Yemen | YEM | SURVEY | 2026-01-08 | 35.79 | 12,228,225 |
| Yemen | YEM | SURVEY | 2026-04-10 | 35.78 | 12,223,653 |
| Yemen | YEM | SURVEY | 2026-04-17 | 34.96 | 11,943,678 |
| Yemen | YEM | SURVEY | 2026-05-01 | 34.76 | 11,874,921 |
| Yemen | YEM | SURVEY | 2026-02-06 | 34.38 | 11,744,312 |
| Kenya | KEN | SURVEY | 2024-01-16 | 34.03 | 17,488,455 |
| Nigeria | NGA | SURVEY | 2025-12-04 | 33.51 | 52,804,460 |
| Nigeria | NGA | SURVEY | 2025-12-18 | 32.97 | 51,953,778 |
| Guinea | GIN | SURVEY | 2024-01-11 | 32.86 | 4,079,611 |
| Colombia | COL | SURVEY | 2024-10-02 | 32.75 | 16,262,334 |
| Nigeria | NGA | SURVEY | 2025-12-25 | 32.22 | 50,774,053 |
| Cameroon | CMR | SURVEY | 2025-10-11 | 32.07 | 8,087,333 |
| Cameroon | CMR | SURVEY | 2025-10-12 | 32.00 | 8,068,236 |
| Cameroon | CMR | SURVEY | 2026-01-08 | 31.26 | 7,882,549 |
| Cameroon | CMR | SURVEY | 2025-12-18 | 31.20 | 7,866,760 |
| Cameroon | CMR | SURVEY | 2025-12-25 | 31.15 | 7,854,714 |
| Nigeria | NGA | SURVEY | 2026-01-08 | 30.78 | 48,498,946 |
| Cameroon | CMR | SURVEY | 2025-12-04 | 30.63 | 7,724,251 |
| Cameroon | CMR | SURVEY | 2026-02-06 | 30.57 | 7,708,235 |
| Cameroon | CMR | SURVEY | 2026-02-27 | 30.00 | 7,564,225 |
| Madagascar | MDG | SURVEY | 2024-03-04 | 29.78 | 7,816,509 |
| Ecuador | ECU | SURVEY | 2026-01-08 | 29.35 | 5,117,063 |
| Namibia | NAM | SURVEY | 2023-12-04 | 28.68 | 659,693 |
| Nigeria | NGA | SURVEY | 2026-02-06 | 28.65 | 45,150,454 |
| Cameroon | CMR | SURVEY | 2026-05-01 | 27.42 | 6,913,983 |
| Ecuador | ECU | SURVEY | 2025-12-25 | 27.31 | 4,761,773 |
| Cameroon | CMR | SURVEY | 2026-03-13 | 27.27 | 6,875,645 |
| Ecuador | ECU | SURVEY | 2025-12-18 | 25.98 | 4,530,031 |
| Cameroon | CMR | SURVEY | 2026-03-20 | 25.69 | 6,477,940 |
| Cameroon | CMR | SURVEY | 2026-04-17 | 25.67 | 6,471,802 |
| Cameroon | CMR | SURVEY | 2026-04-10 | 25.58 | 6,449,597 |
| Mozambique | MOZ | SURVEY | 2023-12-04 | 25.42 | 7,497,086 |
| Nigeria | NGA | SURVEY | 2026-02-27 | 25.27 | 39,823,189 |
| Ecuador | ECU | SURVEY | 2025-12-04 | 24.66 | 4,299,086 |
| Côte d'Ivoire | CIV | SURVEY | 2024-03-15 | 24.32 | 7,146,630 |
| Guatemala | GTM | SURVEY | 2025-10-11 | 23.15 | 3,992,439 |
| Nigeria | NGA | SURVEY | 2026-03-13 | 22.39 | 35,272,984 |
| Nigeria | NGA | SURVEY | 2026-04-17 | 22.35 | 35,209,437 |
| Nigeria | NGA | SURVEY | 2026-04-10 | 22.11 | 34,835,295 |
| Guatemala | GTM | SURVEY | 2025-10-12 | 21.83 | 3,764,712 |
| Nigeria | NGA | SURVEY | 2026-03-20 | 21.75 | 34,278,673 |
| Somalia | SOM | SURVEY | 2024-03-17 | 21.02 | 3,443,866 |
| Nigeria | NGA | SURVEY | 2026-05-01 | 21.00 | 33,081,242 |
| Honduras | HND | SURVEY | 2025-12-18 | 20.68 | 1,982,603 |
| Guatemala | GTM | SURVEY | 2025-12-04 | 20.63 | 3,558,656 |
| Ecuador | ECU | SURVEY | 2026-02-06 | 20.25 | 3,531,157 |
| Chad | TCD | SURVEY | 2024-01-05 | 19.78 | 3,154,945 |
| Honduras | HND | SURVEY | 2026-01-21 | 19.57 | 1,876,729 |
| Honduras | HND | SURVEY | 2025-12-25 | 19.42 | 1,861,565 |
| Ecuador | ECU | SURVEY | 2026-04-15 | 19.12 | 3,334,478 |
| Ecuador | ECU | SURVEY | 2026-02-27 | 18.98 | 3,308,442 |
| Ecuador | ECU | SURVEY | 2026-04-10 | 18.59 | 3,242,099 |
| Dominican Republic | DOM | SURVEY | 2025-12-24 | 18.35 | 1,976,315 |
| Dominican Republic | DOM | SURVEY | 2025-12-18 | 18.24 | 1,964,889 |
| Niger | NER | SURVEY | 2023-12-04 | 18.11 | 4,686,704 |
| Ukraine | UKR | SURVEY | 2025-12-18 | 17.63 | 2,459,869 |
| Ecuador | ECU | SURVEY | 2026-03-13 | 17.56 | 3,060,962 |
| Ecuador | ECU | SURVEY | 2026-03-20 | 17.52 | 3,054,807 |
| Honduras | HND | SURVEY | 2025-10-12 | 17.39 | 1,666,832 |
| Dominican Republic | DOM | SURVEY | 2025-12-04 | 17.26 | 1,858,812 |
| Honduras | HND | SURVEY | 2025-10-11 | 17.13 | 1,642,228 |
| Ukraine | UKR | SURVEY | 2025-10-11 | 17.12 | 2,389,511 |
| Ukraine | UKR | SURVEY | 2025-12-04 | 16.98 | 2,369,797 |
| Ukraine | UKR | SURVEY | 2025-10-12 | 16.59 | 2,315,307 |