Data WHO/UNICEF & CDC · 21 October 2026 How grades work · Changelog · Corrections

Open Source Medicine Foundation

American Samoa

Coverage to 2025 · cases to 2025

Vaccination rates and reported vaccine-preventable disease in American Samoa, with a data-quality grade on every series.

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77%
MCV1
2011 · Administrative (country-reported)
91%
DTP3
2011 · Administrative (country-reported)
78%
HepB3
2011 · Administrative (country-reported)
0
Measles cases
2011 reported
0
Pertussis (whooping cough) cases
2011 reported

Two kinds of number live on this page. Coverage is the share of the target cohort vaccinated, as estimated by WHO and UNICEF each July from the country's reports, surveys and other evidence, shown beside what the country itself reported. Reported cases are what the national surveillance system sent to WHO; they are a floor, not a count of infections. Every row carries a grade; hover or focus it for the reason, or read how grades are assigned.

Vaccination coverage

Vaccination coverage by antigen, latest WHO/UNICEF estimate, country-reported figure, trend since 2000 and data-quality grade
VaccineLatest estimateCountry-reportedTrend since 2000Data quality
BCGTuberculosis vaccine at birth0%2011 · Administrative (country-reported)0%too few pointsD · poor
DTP1First dose of diphtheria-tetanus-pertussis100%2011 · Administrative (country-reported)100%DTP1 coverage: 2000 to 2011, latest 100% in 2011, lowest 90%, highest 100%.D · poor
DTP3Third dose of diphtheria-tetanus-pertussis (the WHO benchmark of a working programme)91%2011 · Administrative (country-reported)91%DTP3 coverage: 2000 to 2011, latest 91% in 2011, lowest 82%, highest 94%.D · poor
MCV1First dose of measles-containing vaccine77%2011 · Administrative (country-reported)77%MCV1 coverage: 2000 to 2011, latest 77% in 2011, lowest 77%, highest 97%.D · poor
MCV2Second dose of measles-containing vaccine65%2011 · Administrative (country-reported)65%MCV2 coverage: 2000 to 2011, latest 65% in 2011, lowest 57%, highest 94%.D · poor
RCV1First dose of rubella-containing vaccine—% · Administrative (country-reported)—too few pointsD · poor
HepB3Third dose of hepatitis B vaccine78%2011 · Administrative (country-reported)78%HepB3 coverage: 2000 to 2011, latest 78% in 2011, lowest 78%, highest 94%.D · poor
HepB birthHepatitis B birth dose within 24 hours100%2011 · Administrative (country-reported)100%HepB birth coverage: 2000 to 2011, latest 100% in 2011, lowest 99%, highest 100%.D · poor
Hib3Third dose of Haemophilus influenzae type b vaccine69%2011 · Administrative (country-reported)69%Hib3 coverage: 2000 to 2011, latest 69% in 2011, lowest 69%, highest 88%.D · poor
PCV1Pneumococcal conjugate vaccine, first dose97%2011 · Administrative (country-reported)97%too few pointsD · poor
PCV completePneumococcal conjugate vaccine, final dose of the schedule85%2011 · Administrative (country-reported)85%too few pointsD · poor
RotaCRotavirus vaccine, complete series0%2011 · Administrative (country-reported)0%too few pointsD · poor
Yellow feverYellow fever vaccine (countries at risk)0%2011 · Administrative (country-reported)0%too few pointsD · poor
JEJapanese encephalitis vaccine (countries at risk)0%2011 · Administrative (country-reported)0%too few pointsD · poor
PABProtection at birth against neonatal tetanus (maternal tetanus doses)0%2011 · Administrative (country-reported)0%PAB coverage: 2000 to 2011, latest 0% in 2011, lowest 0%, highest 60%.D · poor

Reported vaccine-preventable disease

Reported cases and incidence by disease, latest year, trend since 2000 and data-quality grade
DiseaseReported casesIncidence rateTrend since 2000Data quality
Measles all countries · vaccine evidence020110per 1,000,000 total populationMeasles reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 1.no data
Rubella all countries · vaccine evidence020110per 1,000,000 total populationRubella reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 0.no data
Congenital rubella syndrome all countries · vaccine evidence020110per 10,000 live birthsCongenital rubella syndrome reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 0.no data
Mumps all countries · vaccine evidence020110per 1,000,000 total populationMumps reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 1.no data
Pertussis (whooping cough) all countries · vaccine evidence020110per 1,000,000 total populationPertussis (whooping cough) reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 2.no data
Diphtheria all countries · vaccine evidence020110per 1,000,000 total populationDiphtheria reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 0.no data
Tetanus (total) all countries · vaccine evidence020110per 1,000,000 total populationTetanus (total) reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 0.no data
Neonatal tetanus all countries · vaccine evidence020110per 1,000 live birthsNeonatal tetanus reported cases: 2000 to 2011, latest 0 in 2011, lowest 0, highest 0.no data
Polio (paralytic) all countries · vaccine evidence020050per 1,000,000 <15 populationPolio (paralytic) reported cases: 2000 to 2005, latest 0 in 2005, lowest 0, highest 0.no data
Yellow fever all countries · vaccine evidence020080per 1,000,000 total populationYellow fever reported cases: 2000 to 2008, latest 0 in 2008, lowest 0, highest 0.no data
Japanese encephalitis all countries · vaccine evidence020110per 1,000,000 total populationJapanese encephalitis reported cases: 2007 to 2011, latest 0 in 2011, lowest 0, highest 0.no data

National schedule (latest WHO listing)

No schedule listing in the WHO export for this country.

Compare schedules across 31 countries on the schedule hub.

Data and sources

Coverage figures are WHO/UNICEF estimates unless a row says otherwise; reported cases are what national authorities sent to WHO and undercount true infections. Each series carries a data-quality grade that says why.

Cite this page. American Samoa. Vaccine Data Navigator, Open Source Medicine Foundation. Built 21 October 2026 from WHO/UNICEF (WIISE) exports and CDC SchoolVaxView. https://vaccinedatanavigator.org/disease-risk/countries/asm.html

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