Seroprevalence of Zika virus infection by country
| Number of sera tested | Seroprevalence (%) | |
|---|---|---|
| Africa | ||
| West/Central Africa | ||
| Angola | 5082 | 4.0 |
| Benin | 244 | 44.0 |
| Burkina Faso | 1897 | 53.3 |
| Cameroon | 5811 | 16.5 |
| Central African Republic* | 7657 | 10.8 |
| Central African Republic† | 908 | 27.1 |
| Chad | 140 | 1.4 |
| Côte d'Ivoire‡ | 3006 | 24.7 |
| Gabon | 970 | 8.4 |
| Gabon† | 1276 | 32.4 |
| Guinea-Bissau | 1154 | 10.6 |
| Liberia | 527 | 4.7 |
| Mali | 2369 | 52.0 |
| Niger | 308 | 18.0 |
| Nigeria§¶ | 15 122 | 6.8 |
| Republic of the Congo | 460 | 0.4 |
| Senegal** | 4734 | 39.3 |
| Sierra Leone | 899 | 6.9 |
| Togo | 1294 | 31.0 |
| Africa, other | ||
| Burundi | 623 | 1.4 |
| Djibouti | 91 | 2.2 |
| Egypt | 180 | 0.6 |
| Ethiopia | 1939 | 3.9 |
| Kenya | 3719 | 14.9 |
| Madagascar | 392 | 7.7 |
| Mozambique | 249 | 4.0 |
| Republic of Seychelles | 300 | 0.7 |
| Somalia | 477 | 19.7 |
| Sudan†† | 109 | 0.0 |
| Tanzania | 1063 | 12.7 |
| Uganda | 4236 | 6.3 |
| Asia | ||
| South Asia | ||
| India | 197 | 16.8 |
| Pakistan | 43 | 2.3 |
| East Asia | ||
| Hong Kong | 235 | 4.7 |
| Southeast Asia | ||
| Indonesia | 323 | 33.7 |
| Malaysia | 340 | 43.5 |
| Malaysia† | 358 | 49.2 |
| Philippines | 153 | 12.4 |
| Thailand | 50 | 16.0 |
| Vietnam | 50 | 4.0 |
| Europe | ||
| Spain | 1738 | 2.9 |
| World | ||
| Total across all countries | 70 723 | 15.7 |
*Excludes one article for which seroprevalence could not be calculated.28
†Data that were estimated from graphs in the articles reviewed.34 ,78 ,89
‡Reports results of NT for sera that were tested with multiple test modalities.21
§Possibly reports duplicate results of 294 sera, including 89 that tested positive.68 ,86
¶Reports results from the more recent test for individuals tested twice.69
**Reports results of IP for sera that were tested with multiple test modalities.22
††Reports results of NT for sera that were tested with multiple test modalities.23