Cases of paralytic polio from wild vs vaccine derived viruses by country
Countries reporting
53
Highest
223
Democratic Republic of Congo
Lowest
0
India
Median
0
Years covered
23
2001–2023
Data points
3,956
What the numbers show
Cases of paralytic polio from wild vs vaccine derived viruses is currently reported for 53 countries. The highest value is 223 in Democratic Republic of Congo; the lowest is 0 in India.
The median across all reporting countries is 0, and the mean is 9.89.
Over the past decade 5 countries rose and 3 fell. The largest increase was in Nigeria (up 2,075.0%), and the largest decrease in Cameroon (down 100.0%).
Cases of paralytic polio from wild vs vaccine derived viruses: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Democratic Republic of Congo | 223 | 2023 | — | volatile |
| 2 | Nigeria | 87 | 2023 | up 2,075.0% | volatile |
| 3 | Chad | 55 | 2023 | up 1,733.3% | volatile |
| 4 | Guinea | 47 | 2023 | — | volatile |
| 5 | Madagascar | 24 | 2023 | — | volatile |
| 6 | Mali | 15 | 2023 | — | volatile |
| 7 | Central African Republic | 14 | 2023 | — | volatile |
| 8 | Kenya | 8 | 2023 | — | volatile |
| 8 | Yemen | 8 | 2023 | up 700.0% | volatile |
| 8 | Somalia | 8 | 2023 | up 700.0% | volatile |
| 11 | Indonesia | 6 | 2023 | — | volatile |
| 11 | Cote d'Ivoire | 6 | 2023 | — | volatile |
| 13 | Mozambique | 5 | 2023 | — | volatile |
| 14 | South Sudan | 3 | 2023 | — | volatile |
| 14 | Burkina Faso | 3 | 2023 | — | volatile |
| 14 | Benin | 3 | 2023 | — | volatile |
| 17 | Niger | 2 | 2023 | up 100.0% | volatile |
| 17 | Tanzania | 2 | 2023 | — | volatile |
| 19 | Mauritania | 1 | 2023 | — | volatile |
| 19 | Zimbabwe | 1 | 2023 | — | volatile |
| 19 | Zambia | 1 | 2023 | — | volatile |
| 19 | Israel | 1 | 2023 | — | volatile |
| 19 | Burundi | 1 | 2023 | — | volatile |
| 24 | Togo | 0 | 2023 | — | volatile |
| 24 | Sudan | 0 | 2023 | — | volatile |
| 24 | Senegal | 0 | 2023 | — | volatile |
| 24 | Sierra Leone | 0 | 2023 | — | volatile |
| 24 | Dominican Republic | 0 | 2023 | — | volatile |
| 24 | Congo | 0 | 2023 | — | volatile |
| 24 | Syria | 0 | 2023 | — | volatile |
| 24 | Cameroon | 0 | 2023 | down 100.0% | volatile |
| 24 | Papua New Guinea | 0 | 2023 | — | volatile |
| 24 | Tajikistan | 0 | 2023 | — | volatile |
| 24 | China | 0 | 2023 | — | volatile |
| 24 | Ukraine | 0 | 2023 | — | volatile |
| 24 | United States | 0 | 2023 | — | volatile |
| 24 | Angola | 0 | 2023 | — | volatile |
| 24 | Afghanistan | 0 | 2023 | down 100.0% | volatile |
| 24 | Philippines | 0 | 2023 | — | volatile |
| 24 | Pakistan | 0 | 2023 | down 100.0% | volatile |
| 24 | Algeria | 0 | 2023 | — | volatile |
| 24 | Eritrea | 0 | 2023 | — | volatile |
| 24 | Malaysia | 0 | 2023 | — | volatile |
| 24 | Malawi | 0 | 2023 | — | volatile |
| 24 | Ethiopia | 0 | 2023 | — | volatile |
| 24 | Ghana | 0 | 2023 | — | volatile |
| 24 | Myanmar | 0 | 2023 | — | volatile |
| 24 | Guinea-Bissau | 0 | 2023 | — | volatile |
| 24 | Haiti | 0 | 2023 | — | volatile |
| 24 | Liberia | 0 | 2023 | — | volatile |
| 24 | Laos | 0 | 2023 | — | volatile |
| 24 | Cambodia | 0 | 2023 | — | volatile |
| 24 | India | 0 | 2023 | — | volatile |