報告されたジフテリアの症例 (数)
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
| ナイジェリア | 1,768 | 3,995 | | | 0 | | | | | | 0 | 1,870 | 2,289 | | | | 14,163 | 10,595 |
| チャド | | | | | | | | | | | | | | | | | 671 | 2,599 |
| ニジェール | 102 | 12 | | 0 | 0 | 0 | 73 | 0 | 0 | 0 | 5 | 44 | 55 | 15 | 0 | 736 | 3,286 | 2,082 |
| ソマリア | | | | | | 65 | 7 | | | | | 6 | 0 | 0 | | | 1 | 838 |
| アルジェリア | 30 | | 7 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | | 4 | 174 | 125 |
| 南アフリカ | 34 | 2 | | | 0 | | | | 15 | 0 | 4 | 4 | 0 | 9 | 0 | | 17 | 73 |
| モーリタニア | 18 | | 0 | | | 0 | | | 0 | 0 | | 0 | 0 | 0 | 0 | 0 | 20 | 40 |
| コンゴ民主共和国 | | 0 | | | | | | | | | | | | | | 44 | 38 | 38 |
| ケニア | 1 | 15 | | | | | | | | | | | | | | | | 27 |
| エスワティニ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 |
| ガボン | | | | | | | | | | | | | | | | | 3 | 10 |
| ガンビア | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | | 0 | 0 | 0 | 0 |
| ジンバブエ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| エリトリア | | | | 3 | 5 | 8 | 0 | | 2 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 中央アフリカ共和国 | 0 | 0 | 0 | 0 | | 0 | 35 | 0 | 0 | 0 | 106 | 48 | 56 | 53 | 57 | | 1 | 0 |
| ガーナ | 66 | 0 | | 47 | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 |
| コモロ | 0 | | 0 | 0 | | | 0 | 0 | 0 | | | | | | 0 | | 0 | 0 |
| マリ | 5 | | 0 | | | | | 0 | 0 | | | 0 | 0 | | | 0 | 0 | 0 |
| カーボベルデ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 | | 0 | 0 | | 0 |
| ギニアビサウ | 0 | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 0 | | 0 | 0 | 0 |
| ブルキナファソ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 10 | 147 | 34 | 0 | 0 |
| チュニジア | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 | 0 | 0 | 0 |
| ザンビア | 4 | 0 | 11 | 0 | 0 | 0 | 0 | | 1 | 1 | 0 | 0 | | | | | 0 | 0 |
| トーゴ | 0 | 0 | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| リビア | 0 | | 0 | | | | | | | | | 0 | | | 0 | 0 | 0 | 0 |
| ボツワナ | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | | 0 | 0 | 0 |
| エジプト | 59 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| セイシェル | 0 | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| コートジボワール | | | | | | | | | | | | | 0 | 17 | 0 | | 41 | 0 |
| スーダン | 1,342 | 26 | 13 | 1 | 193 | 18 | 0 | 11 | | 0 | 2 | | 82 | 6 | | 9 | 14 | 0 |
| セネガル | | | 0 | | | | | 0 | 0 | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| モーリシャス | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | 0 | | | 0 | | 0 | 0 | 0 |
| ジブチ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | | | | | 0 | 0 | 0 | 0 | 0 |
| ベナン | | | | | | 0 | 0 | 0 | 0 | | | | | | | | 0 | 0 |
| 赤道ギニア | | | | | 0 | 0 | 0 | 0 | 0 | 0 | | | | 0 | | | | 0 |
| ブルンジ | 0 | 0 | 0 | 0 | 0 | | | | | | | | | | | | | |
| ギニア | 37 | 0 | 36 | 0 | 0 | 0 | 0 | | | 0 | 0 | 0 | | | | 0 | 88 | |
| コンゴ | 0 | | 0 | 0 | 0 | 1 | 0 | 0 | | 0 | 0 | 0 | 0 | 10 | | | 0 | |
| ルワンダ | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 | 0 | 0 | 0 | |
| アンゴラ | 64 | 0 | 0 | | 0 | 15 | 20 | | | | | | | | | | | |
| レソト | 37 | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | | |
| モロッコ | 0 | 0 | | 0 | 0 | 0 | 0 | | | | | 0 | | | | | | |
| タンザニア連合共和国 | 0 | | 0 | 0 | 0 | 0 | 0 | | | | | | | | | | | |
| エチオピア | 61 | | | | | | | | | | | | 7,184 | 5,267 | 4,453 | 3,946 | | |
| マラウイ | | | 0 | 0 | | | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | | | | |
| マダガスカル | 252 | 12 | | 0 | 5 | 1 | 0 | | 1,627 | 2,865 | 0 | 0 | 1,815 | 0 | 18 | 92 | 97 | |
| モザンビーク | 0 | | 0 | | | | | | 0 | | 0 | 0 | 0 | | | | | |
| サントメプリンシペ | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 0 | | 0 | | | |
| カメルーン | 0 | | | | | | | | | | | | | | | | | |
| ウガンダ | 95 | | 0 | | | | | | | | | | | | 49 | 0 | | |
| リベリア | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | | | | | 0 | | |
| シエラレオネ | | 0 | 0 | | | | | | | | | | | | 0 | | | |
| 南スーダン | | | | | | | | 0 | 9 | | 0 | | | | 0 | | 85 | |