Portugal vs Samoa: Diphtheria tetanus toxoid and pertussis first-dose (DTP1)
Portugal
99.0%
in 2025
Samoa
99.0%
in 2025
Portugal rank
1st
Samoa rank
1st
Diphtheria tetanus toxoid and pertussis first-dose (DTP1) over time
- Portugal
- Samoa
How they compare
Portugal currently reports 99.0% against 99.0% in Samoa, a difference of 0.0%.
The two have swapped places 4 times across 26 shared years of data; in 2000 it was Samoa ahead.
Portugal ranks 1st and Samoa ranks 1st of 194 countries.
Portugal has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Portugal | Samoa | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 98.1% | 87.0% | 11.1% | Portugal |
| 2010s | 98.8% | 86.4% | 12.4% | Portugal |
| 2020s | 99.0% | 98.2% | 0.8% | Portugal |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher diphtheria tetanus toxoid and pertussis first-dose (dtp1), Portugal or Samoa?
- Portugal, at 99.0% against 99.0% in Samoa as of 2025.
- What is the difference in diphtheria tetanus toxoid and pertussis first-dose (dtp1) between Portugal and Samoa?
- 0.0%, with Portugal ahead.
- How many years of comparable data are there for Portugal and Samoa?
- 26 years are reported by both, from 2000 to 2025.
- How do Portugal and Samoa rank globally for diphtheria tetanus toxoid and pertussis first-dose (dtp1)?
- Portugal ranks 1st and Samoa ranks 1st of 194 countries.
- Where does this data come from?
- World Health Organization, Global Health Observatory, published as Diphtheria tetanus toxoid and pertussis first-dose (DTP1) immunization coverage among 1-year-olds (%) (WUENIC). Statizoid refreshes it automatically from the source and publishes the full history for both places.