Serotype/group prevalence in children in different countries
| Country | Percentage respective serotype or group* | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 4 | 5 | 6 | 7 | 9 | 14 | 18 | 19 | 23 | |
| USA | 1 | 0 | 7 | 0.2 | 17 | 2 | 7 | 27 | 9 | 14 | 7 |
| Spain | 3 | 1 | 2 | 7 | 17 | 3 | 5 | 3 | 5 | 17 | 15 |
| Belgium | 5 | 0 | 3 | 1 | 8 | 7 | 9 | 29 | 9 | 16 | 5 |
| Denmark | 7 | 0 | 2 | 2 | 20 | 7 | 7 | 13 | 17 | 10 | 2 |
| Finland | 0 | 0 | 6 | 0 | 18 | 9 | 6 | 22 | 8 | 17 | 7 |
| Australia | 5 | 0 | 9 | 1 | 11 | 2 | 6 | 22 | 12 | 10 | 8 |
| Israel | 13 | 0 | 3 | 17 | 11 | 5 | 6 | 15 | 7 | 9 | 4 |
| South Africa | 11 | 1 | 4 | 2 | 28 | 3 | 2 | 19 | 4 | 13 | 3 |
| Rwanda | 22 | 1 | 0 | 15 | 10 | 1 | 1 | 15 | 3 | 4 | 1 |
| Gambia | 10 | 0 | 0 | 9 | 15 | 0 | 5 | 32 | 2 | 5 | 0 |
| Egypt | 31 | 2 | 2 | 5 | 8 | 4 | 9 | 7 | 4 | 2 | 1 |
| Pakistan | 1 | 0 | 0 | 4 | 11 | 0.6 | 7 | 1 | 2 | 39 | 4 |
| PNG | 3 | 7 | 1 | 11 | 7 | 13 | 2 | 7 | 1 | 7 | 7 |
| Mexico | 1 | 3 | 1 | 1 | 18 | 1 | 7 | 9 | 3 | 14 | 21 |
| Brazil | 6 | 2 | 3 | 10 | 18 | 2 | 5 | 11 | 11 | 8 | 5 |
| Uruguay | 6 | 0 | 2 | 15 | 4 | 4 | 11 | 40 | 0 | 0 | 2 |
Modified after reference 32. *The two most frequent types in each country are underlined (three when the second and third have the same frequency).