Number of one-year-olds who are not vaccinated against diphtheria in Comoros
Comoros: Number of one-year-olds who are not vaccinated against diphtheria was 0.0068 one-year-olds per person in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Comoros, 1984–2023
Source: Statizoid (derived). Measured in one-year-olds per person.
Analysis
In 2023, number of one-year-olds who are not vaccinated against diphtheria in Comoros stood at 0.0068 one-year-olds per person.
Compared with earlier readings it is up 12.0% on the previous year and up 29.1% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Comoros peaked at 0.0272 one-year-olds per person in 1984 and was at its lowest, 0.0023 one-year-olds per person, in 1990.
That places Comoros 26th out of 192 countries with data for 2023, putting it in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not vaccinated against diphtheria in Comoros, year by year
| Year | one-year-olds per person | Change |
|---|---|---|
| 1984 | 0.0272 one-year-olds per person | — |
| 1985 | 0.0193 one-year-olds per person | -28.9% |
| 1986 | 0.0114 one-year-olds per person | -40.8% |
| 1987 | 0.0114 one-year-olds per person | -0.3% |
| 1988 | 0.0223 one-year-olds per person | +95.6% |
| 1989 | 0.007 one-year-olds per person | -68.7% |
| 1990 | 0.0023 one-year-olds per person | -67.0% |
| 1991 | 0.0182 one-year-olds per person | +691.5% |
| 1992 | 0.0234 one-year-olds per person | +28.2% |
| 1993 | 0.0113 one-year-olds per person | -51.8% |
| 1994 | 0.0155 one-year-olds per person | +37.8% |
| 1995 | 0.009 one-year-olds per person | -42.1% |
| 1996 | 0.0141 one-year-olds per person | +56.1% |
| 1997 | 0.0179 one-year-olds per person | +27.6% |
| 1998 | 0.0085 one-year-olds per person | -52.8% |
| 1999 | 0.009 one-year-olds per person | +6.5% |
| 2000 | 0.01 one-year-olds per person | +11.3% |
| 2001 | 0.0101 one-year-olds per person | +0.9% |
| 2002 | 0.0037 one-year-olds per person | -63.3% |
| 2003 | 0.0066 one-year-olds per person | +78.8% |
| 2004 | 0.0076 one-year-olds per person | +15.3% |
| 2005 | 0.0099 one-year-olds per person | +29.2% |
| 2006 | 0.0095 one-year-olds per person | -3.4% |
| 2007 | 0.0077 one-year-olds per person | -19.3% |
| 2008 | 0.0058 one-year-olds per person | -24.2% |
| 2009 | 0.0052 one-year-olds per person | -10.7% |
| 2010 | 0.008 one-year-olds per person | +53.5% |
| 2011 | 0.0053 one-year-olds per person | -34.2% |
| 2012 | 0.0044 one-year-olds per person | -17.2% |
| 2013 | 0.0053 one-year-olds per person | +20.5% |
| 2014 | 0.0061 one-year-olds per person | +16.0% |
| 2015 | 0.006 one-year-olds per person | -1.4% |
| 2016 | 0.0074 one-year-olds per person | +22.9% |
| 2017 | 0.0061 one-year-olds per person | -17.1% |
| 2018 | 0.0066 one-year-olds per person | +8.5% |
| 2019 | 0.0063 one-year-olds per person | -5.3% |
| 2020 | 0.0073 one-year-olds per person | +16.7% |
| 2021 | 0.0078 one-year-olds per person | +6.4% |
| 2022 | 0.0061 one-year-olds per person | -22.5% |
| 2023 | 0.0068 one-year-olds per person | +12.0% |
Comoros compared with similar countries
- Comoros's 0.0068 one-year-olds per person is above the median for lower middle income countries, which is 0.0036 one-year-olds per person, 1.9× the median. (46 countries reporting)
- Comoros's 0.0068 one-year-olds per person is above the median for Sub-Saharan Africa, which is 0.0048 one-year-olds per person, 1.4× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in Comoros changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1991 | +691.5% | 0.0023 one-year-olds per person | 0.0182 one-year-olds per person |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.0164 one-year-olds per person | 0.007 one-year-olds per person | 0.0272 one-year-olds per person | 6 |
| 1990s | 0.0129 one-year-olds per person | 0.0023 one-year-olds per person | 0.0234 one-year-olds per person | 10 |
| 2000s | 0.0076 one-year-olds per person | 0.0037 one-year-olds per person | 0.0101 one-year-olds per person | 10 |
| 2010s | 0.0061 one-year-olds per person | 0.0044 one-year-olds per person | 0.008 one-year-olds per person | 10 |
| 2020s | 0.007 one-year-olds per person | 0.0061 one-year-olds per person | 0.0078 one-year-olds per person | 4 |
Countries ranked near Comoros
- 23 Equatorial Guinea 0.0072 one-year-olds per person compare
- 24 South Sudan 0.0072 one-year-olds per person compare
- 25 Syrian Arab Republic 0.0069 one-year-olds per person compare
- 27 Bolivia, Plurinational State of 0.0068 one-year-olds per person compare
- 28 Venezuela, Bolivarian Republic of 0.0067 one-year-olds per person compare
- 29 Congo 0.0064 one-year-olds per person compare
More health data for Comoros
- Un projection of annual infant deaths, annual growth rate -2.16 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.8656 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 827.3 deaths per 1,000 people (2090)
- Number of infants who die before age 1 136 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 2 (2025)
- Population ages 00-04, female, annual growth rate 0.6648 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0647 units per person (2025)
- Population ages 00-04, male, annual growth rate 0.6855 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in Comoros?
- Number of one-year-olds who are not vaccinated against diphtheria in Comoros was 0.0068 one-year-olds per person in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in Comoros?
- The highest recorded value was 0.0272 one-year-olds per person in 1984.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Comoros?
- The lowest recorded value was 0.0023 one-year-olds per person in 1990.
- How does Comoros rank for number of one-year-olds who are not vaccinated against diphtheria?
- Comoros ranks 26th out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Comoros?
- Over the last ten years it is up 29.1%. The long-run trend across the full record is volatile.
- Where does this Comoros data come from?
- The figures come from Statizoid (derived), published as part of Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per capita. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 40 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus ÷ Population, total
Computed from
- Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
- Population, total World Population Prospects, United Nations (UN)
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
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.