Diphtheria - number of reported cases, annual growth rate by country
The year-on-year percentage change in Diphtheria - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Countries reporting
140
Highest
661.58 % change on previous year
Yemen
Lowest
-100 % change on previous year
Zimbabwe
Median
-100 % change on previous year
Years covered
51
1975–2025
Data points
3,361
What the numbers show
Diphtheria - number of reported cases, annual growth rate is currently reported for 140 countries. The highest value is 661.58 % change on previous year in Yemen; the lowest is -100 % change on previous year in Zimbabwe.
The median across all reporting countries is -100 % change on previous year, and the mean is -35.92 % change on previous year.
The gap between the highest and lowest reporting country is a factor of about 7.
Over the past decade 21 countries rose and 56 fell. The largest increase was in Senegal (up 1,151.5%), and the largest decrease in Venezuela, Bolivarian Republic of (down 7,045.4%).
Diphtheria - number of reported cases, annual growth rate: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Yemen | 661.58 % change on previous year | 2025 | up 761.6% | volatile |
| 2 | Algeria | 520 % change on previous year | 2025 | up 620.0% | volatile |
| 3 | Somalia | 332.22 % change on previous year | 2025 | up 472.3% | volatile |
| 4 | South Africa | 330.14 % change on previous year | 2025 | up 430.1% | volatile |
| 5 | Benin | 321.43 % change on previous year | 1989 | up 864.3% | volatile |
| 6 | Switzerland | 300 % change on previous year | 2025 | down 25.0% | volatile |
| 7 | Congo, Democratic Republic of the | 281.25 % change on previous year | 2025 | — | volatile |
| 8 | Gabon | 233.33 % change on previous year | 2024 | — | volatile |
| 9 | Spain | 200 % change on previous year | 2025 | — | volatile |
| 9 | Cambodia | 200 % change on previous year | 2025 | — | volatile |
| 9 | Poland | 200 % change on previous year | 2025 | — | volatile |
| 12 | Australia | 188.89 % change on previous year | 2025 | — | volatile |
| 13 | Nepal | 159.26 % change on previous year | 2024 | down 83.2% | volatile |
| 14 | Canada | 150 % change on previous year | 2025 | down 25.0% | volatile |
| 14 | Thailand | 150 % change on previous year | 2024 | up 566.7% | volatile |
| 16 | Netherlands | 133.33 % change on previous year | 2025 | up 433.3% | volatile |
| 17 | Mauritania | 100 % change on previous year | 2024 | — | volatile |
| 17 | New Zealand | 100 % change on previous year | 2025 | — | volatile |
| 17 | Slovakia | 100 % change on previous year | 2025 | unchanged | volatile |
| 20 | Malaysia | 75 % change on previous year | 2025 | down 25.0% | volatile |
| 21 | Senegal | 62 % change on previous year | 1983 | up 1,151.5% | volatile |
| 22 | Nigeria | 44.15 % change on previous year | 2025 | up 97.1% | volatile |
| 23 | Angola | 33.33 % change on previous year | 2013 | up 133.3% | volatile |
| 24 | Myanmar | 28.92 % change on previous year | 2025 | down 85.5% | volatile |
| 25 | Belgium | 28.57 % change on previous year | 2025 | up 128.6% | volatile |
| 26 | France | 18.92 % change on previous year | 2025 | down 85.8% | volatile |
| 27 | United Kingdom of Great Britain and Northern Ireland | 15.38 % change on previous year | 2025 | up 115.4% | volatile |
| 28 | Madagascar | 5.43 % change on previous year | 2023 | up 105.4% | volatile |
| 29 | Austria | 0 % change on previous year | 2025 | up 100.0% | volatile |
| 29 | Germany | 0 % change on previous year | 2025 | down 100.0% | volatile |
| 31 | Czechia | -9.09 % change on previous year | 2025 | — | volatile |
| 32 | Iraq | -11.11 % change on previous year | 2025 | up 81.5% | volatile |
| 33 | Ethiopia | -11.39 % change on previous year | 2022 | — | volatile |
| 34 | Haiti | -17.33 % change on previous year | 2025 | down 101.8% | volatile |
| 35 | Niger | -23.54 % change on previous year | 2025 | up 76.5% | volatile |
| 36 | Azerbaijan | -25 % change on previous year | 2008 | up 47.2% | volatile |
| 36 | Sweden | -25 % change on previous year | 2025 | up 75.0% | volatile |
| 38 | India | -42.33 % change on previous year | 2025 | up 30.8% | volatile |
| 39 | Philippines | -42.93 % change on previous year | 2025 | up 57.1% | volatile |
| 40 | Pakistan | -46.63 % change on previous year | 2025 | — | volatile |
| 41 | Brazil | -50 % change on previous year | 2025 | down 135.7% | volatile |
| 41 | Italy | -50 % change on previous year | 2025 | up 50.0% | volatile |
| 43 | Kenya | -60 % change on previous year | 2001 | — | volatile |
| 44 | Norway | -71.43 % change on previous year | 2025 | — | volatile |
| 45 | Viet Nam | -72.73 % change on previous year | 2025 | down 1,063.6% | volatile |
| 46 | Indonesia | -73.06 % change on previous year | 2025 | down 64.1% | volatile |
| 47 | Latvia | -80 % change on previous year | 2025 | down 246.7% | volatile |
| 48 | Rwanda | -92.86 % change on previous year | 1991 | down 155.7% | volatile |
| 49 | Afghanistan | -97.58 % change on previous year | 2025 | down 148.8% | volatile |
| 50 | Chad | -99.85 % change on previous year | 2025 | — | volatile |
| 51 | Albania | -100 % change on previous year | 2001 | down 383.3% | volatile |
| 51 | United Arab Emirates | -100 % change on previous year | 2000 | unchanged | volatile |
| 51 | Argentina | -100 % change on previous year | 2004 | — | volatile |
| 51 | Armenia | -100 % change on previous year | 2010 | unchanged | volatile |
| 51 | Burundi | -100 % change on previous year | 1990 | down 66.7% | volatile |
| 51 | Burkina Faso | -100 % change on previous year | 2023 | — | volatile |
| 51 | Bangladesh | -100 % change on previous year | 2025 | down 85.7% | volatile |
| 51 | Bahrain | -100 % change on previous year | 1982 | down 185.7% | volatile |
| 51 | Belarus | -100 % change on previous year | 2011 | down 92.6% | volatile |
| 51 | Belize | -100 % change on previous year | 1991 | unchanged | flat |
| 51 | Bolivia, Plurinational State of | -100 % change on previous year | 2011 | down 150.0% | volatile |
| 51 | Barbados | -100 % change on previous year | 1983 | down 200.0% | volatile |
| 51 | Bhutan | -100 % change on previous year | 2020 | — | volatile |
| 51 | Botswana | -100 % change on previous year | 2001 | unchanged | volatile |
| 51 | Central African Republic | -100 % change on previous year | 2024 | unchanged | volatile |
| 51 | Chile | -100 % change on previous year | 2021 | — | volatile |
| 51 | China | -100 % change on previous year | 2021 | unchanged | volatile |
| 51 | Congo | -100 % change on previous year | 2013 | — | volatile |
| 51 | Colombia | -100 % change on previous year | 2022 | — | volatile |
| 51 | Cape Verde | -100 % change on previous year | 1988 | unchanged | volatile |
| 51 | Cuba | -100 % change on previous year | 1980 | — | volatile |
| 51 | Djibouti | -100 % change on previous year | 2000 | unchanged | volatile |
| 51 | Dominican Republic | -100 % change on previous year | 2024 | unchanged | volatile |
| 51 | Ecuador | -100 % change on previous year | 2025 | — | volatile |
| 51 | Egypt | -100 % change on previous year | 2000 | down 115.7% | volatile |
| 51 | Eritrea | -100 % change on previous year | 2018 | down 300.0% | volatile |
| 51 | Estonia | -100 % change on previous year | 2002 | down 75.0% | volatile |
| 51 | Finland | -100 % change on previous year | 2016 | unchanged | volatile |
| 51 | Georgia | -100 % change on previous year | 2020 | unchanged | volatile |
| 51 | Ghana | -100 % change on previous year | 1994 | down 185.0% | volatile |
| 51 | Guinea | -100 % change on previous year | 2006 | — | volatile |
| 51 | Greece | -100 % change on previous year | 2020 | — | volatile |
| 51 | Guatemala | -100 % change on previous year | 2016 | unchanged | volatile |
| 51 | Guyana | -100 % change on previous year | 1981 | down 15.4% | volatile |
| 51 | Hong Kong | -100 % change on previous year | 1983 | unchanged | falling |
| 51 | Honduras | -100 % change on previous year | 1981 | — | volatile |
| 51 | Hungary | -100 % change on previous year | 1991 | down 20.0% | volatile |
| 51 | Iran, Islamic Republic of | -100 % change on previous year | 2018 | down 260.0% | volatile |
| 51 | Israel | -100 % change on previous year | 2003 | unchanged | volatile |
| 51 | Jamaica | -100 % change on previous year | 1995 | down 700.0% | volatile |
| 51 | Jordan | -100 % change on previous year | 1995 | unchanged | volatile |
| 51 | Japan | -100 % change on previous year | 2002 | down 66.7% | volatile |
| 51 | Kazakhstan | -100 % change on previous year | 2009 | down 29.3% | volatile |
| 51 | Kyrgyzstan | -100 % change on previous year | 2018 | unchanged | volatile |
| 51 | Republic of Korea | -100 % change on previous year | 1988 | down 184.6% | volatile |
| 51 | Kuwait | -100 % change on previous year | 1988 | down 500.0% | volatile |
| 51 | Lao People's Democratic Republic | -100 % change on previous year | 2025 | unchanged | volatile |
| 51 | Lebanon | -100 % change on previous year | 2014 | unchanged | flat |
| 51 | Libya | -100 % change on previous year | 1989 | down 54.5% | volatile |
| 51 | Sri Lanka | -100 % change on previous year | 2002 | unchanged | volatile |
| 51 | Lesotho | -100 % change on previous year | 2004 | down 2.8% | volatile |
| 51 | Lithuania | -100 % change on previous year | 2012 | unchanged | volatile |
| 51 | Macao | -100 % change on previous year | 1983 | down 600.0% | volatile |
| 51 | Morocco | -100 % change on previous year | 1992 | down 480.0% | volatile |
| 51 | Republic of Moldova | -100 % change on previous year | 2010 | down 1,000.0% | volatile |
| 51 | Mexico | -100 % change on previous year | 1992 | unchanged | volatile |
| 51 | Mali | -100 % change on previous year | 1996 | down 6.1% | volatile |
| 51 | Mongolia | -100 % change on previous year | 2004 | down 175.0% | volatile |
| 51 | Mozambique | -100 % change on previous year | 1997 | — | volatile |
| 51 | Mauritius | -100 % change on previous year | 2010 | — | flat |
| 51 | Malawi | -100 % change on previous year | 2015 | — | volatile |
| 51 | Nicaragua | -100 % change on previous year | 1986 | unchanged | volatile |
| 51 | Oman | -100 % change on previous year | 1993 | down 216.7% | volatile |
| 51 | Peru | -100 % change on previous year | 2021 | unchanged | volatile |
| 51 | Papua New Guinea | -100 % change on previous year | 2021 | unchanged | volatile |
| 51 | North Korea | -100 % change on previous year | 1982 | down 195.7% | volatile |
| 51 | Portugal | -100 % change on previous year | 1993 | down 180.0% | volatile |
| 51 | Paraguay | -100 % change on previous year | 2012 | down 4.2% | volatile |
| 51 | Qatar | -100 % change on previous year | 2018 | — | volatile |
| 51 | Romania | -100 % change on previous year | 1990 | down 300.0% | volatile |
| 51 | Russian Federation | -100 % change on previous year | 2022 | — | volatile |
| 51 | Saudi Arabia | -100 % change on previous year | 2025 | down 200.0% | volatile |
| 51 | Sudan | -100 % change on previous year | 2024 | unchanged | volatile |
| 51 | Singapore | -100 % change on previous year | 2018 | — | volatile |
| 51 | El Salvador | -100 % change on previous year | 1988 | unchanged | volatile |
| 51 | Serbia | -100 % change on previous year | 1984 | down 400.0% | volatile |
| 51 | Syria | -100 % change on previous year | 2002 | down 433.3% | volatile |
| 51 | Tajikistan | -100 % change on previous year | 2009 | down 26.7% | volatile |
| 51 | Turkmenistan | -100 % change on previous year | 2013 | down 200.0% | volatile |
| 51 | Trinidad and Tobago | -100 % change on previous year | 1998 | unchanged | falling |
| 51 | Tunisia | -100 % change on previous year | 1994 | down 200.0% | volatile |
| 51 | Türkiye | -100 % change on previous year | 2012 | down 66.7% | volatile |
| 51 | Tanzania, United Republic of | -100 % change on previous year | 1984 | down 134.7% | volatile |
| 51 | Uganda | -100 % change on previous year | 2022 | — | volatile |
| 51 | Ukraine | -100 % change on previous year | 2025 | down 200.0% | volatile |
| 51 | United States of America | -100 % change on previous year | 2022 | unchanged | volatile |
| 51 | Uzbekistan | -100 % change on previous year | 2001 | down 400.0% | volatile |
| 51 | Venezuela, Bolivarian Republic of | -100 % change on previous year | 2025 | down 7,045.4% | volatile |
| 51 | Zambia | -100 % change on previous year | 2017 | unchanged | volatile |
| 51 | Zimbabwe | -100 % change on previous year | 2000 | unchanged | volatile |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- Eastern Mediterranean (WHO region) 152.71 % change on previous year
- Sur -100 % change on previous year
- Low income (World Bank) 31.73 % change on previous year
- Africa (WHO region) 30.02 % change on previous year
- High income (World Bank) 24.34 % change on previous year
- World 20.12 % change on previous year
- Europe (WHO region) 19.16 % change on previous year
- Lower-middle income (World Bank) 16.9 % change on previous year
- Upper-middle income (World Bank) 10.91 % change on previous year
- Americas (WHO region) -18.18 % change on previous year
- South-East Asia (WHO region) -41.03 % change on previous year
- Western Pacific (WHO region) -64.6 % change on previous year
How this figure is calculated
The year-on-year percentage change in Diphtheria - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Computed from
- Diphtheria - number of reported cases World Health Organization, Global Health Observatory
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
The year-on-year percentage change in Diphtheria - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.