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

Open Source Medicine Foundation

Sierra Leone

Coverage to 2025 · cases to 2025

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

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90%
MCV1
2025 · WHO/UNICEF estimate
91%
DTP3
2025 · WHO/UNICEF estimate
75%
IPV complete
2025 · WHO/UNICEF estimate
91%
HepB3
2025 · WHO/UNICEF estimate
207
Measles cases
2025 reported
0
Pertussis (whooping cough) cases
2025 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 birth97%2025 · WHO/UNICEF estimate96.9%BCG coverage: 2000 to 2025, latest 97% in 2025, lowest 63%, highest 99%.B · good
DTP1First dose of diphtheria-tetanus-pertussis92%2025 · WHO/UNICEF estimate106.0%DTP1 coverage: 2000 to 2025, latest 92% in 2025, lowest 58%, highest 98%.B · good
DTP3Third dose of diphtheria-tetanus-pertussis (the WHO benchmark of a working programme)91%2025 · WHO/UNICEF estimate104.1%DTP3 coverage: 2000 to 2025, latest 91% in 2025, lowest 38%, highest 95%.B · good
IPV1First dose of inactivated polio vaccine91%2025 · WHO/UNICEF estimate104.6%IPV1 coverage: 2018 to 2025, latest 91% in 2025, lowest 60%, highest 93%.C · weak
IPV completeInactivated polio vaccine, complete primary series75%2025 · WHO/UNICEF estimate94.4%IPV complete coverage: 2021 to 2025, latest 75% in 2025, lowest 4%, highest 75%.D · poor
MCV1First dose of measles-containing vaccine90%2025 · WHO/UNICEF estimate102.2%MCV1 coverage: 2000 to 2025, latest 90% in 2025, lowest 37%, highest 93%.B · good
MCV2Second dose of measles-containing vaccine73%2025 · WHO/UNICEF estimate85.8%MCV2 coverage: 2015 to 2025, latest 73% in 2025, lowest 50%, highest 73%.B · good
RCV1First dose of rubella-containing vaccine90%2025 · WHO/UNICEF estimate102.2%RCV1 coverage: 2020 to 2025, latest 90% in 2025, lowest 87%, highest 90%.D · poor
HepB3Third dose of hepatitis B vaccine91%2025 · WHO/UNICEF estimate—HepB3 coverage: 2007 to 2025, latest 91% in 2025, lowest 63%, highest 95%.B · good
HepB birthHepatitis B birth dose within 24 hours0%2007 · Administrative (country-reported)0%too few pointsD · poor
Hib3Third dose of Haemophilus influenzae type b vaccine91%2025 · WHO/UNICEF estimate—Hib3 coverage: 2007 to 2025, latest 91% in 2025, lowest 63%, highest 95%.B · good
PCV1Pneumococcal conjugate vaccine, first dose107.7%2025 · Administrative (country-reported)107.7%PCV1 coverage: 2011 to 2025, latest 107.74% in 2025, lowest 92%, highest 113%.D · poor
PCV completePneumococcal conjugate vaccine, final dose of the schedule93%2025 · WHO/UNICEF estimate105.3%PCV complete coverage: 2011 to 2025, latest 93% in 2025, lowest 75%, highest 94%.B · good
RotaCRotavirus vaccine, complete series88%2025 · WHO/UNICEF estimate102.5%RotaC coverage: 2014 to 2025, latest 88% in 2025, lowest 53%, highest 95%.B · good
Yellow feverYellow fever vaccine (countries at risk)85%2025 · WHO/UNICEF estimate101.4%Yellow fever coverage: 2002 to 2025, latest 85% in 2025, lowest 60%, highest 90%.B · good
MenAMeningococcal A conjugate (meningitis belt)—% · Administrative (country-reported)—too few pointsno data
JEJapanese encephalitis vaccine (countries at risk)—% · Administrative (country-reported)—too few pointsno data
TCVTyphoid conjugate vaccine—% · Administrative (country-reported)—too few pointsno data
PABProtection at birth against neonatal tetanus (maternal tetanus doses)90%2024 · WHO/UNICEF estimate78.7%PAB coverage: 2000 to 2024, latest 90% in 2024, lowest 53%, highest 97%.C · weak
HPV dose 1, girlsHPV programme coverage, first dose, girls77%2025 · WHO/UNICEF estimate—HPV dose 1, girls coverage: 2022 to 2025, latest 77% in 2025, lowest 24%, highest 77%.D · poor
HPV complete, girlsHPV programme coverage, complete series, girls77%2025 · WHO/UNICEF estimate—HPV complete, girls coverage: 2023 to 2025, latest 77% in 2025, lowest 24%, highest 77%.D · poor
HPV dose 1, boysHPV programme coverage, first dose, boys—% · Administrative (country-reported)—too few pointsno data

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 evidence207202523.5per 1,000,000 total populationMeasles reported cases: 2000 to 2025, latest 207 in 2025, lowest 0, highest 3575.A · strong
Rubella all countries · vaccine evidence420240.5per 1,000,000 total populationRubella reported cases: 2003 to 2024, latest 4 in 2024, lowest 0, highest 358.B · good
Congenital rubella syndrome all countries · vaccine evidence020250per 10,000 live birthsCongenital rubella syndrome reported cases: 2007 to 2025, latest 0 in 2025, lowest 0, highest 0.D · poor
Mumps all countries · vaccine evidence020250per 1,000,000 total populationMumps reported cases: 2007 to 2025, latest 0 in 2025, lowest 0, highest 0.D · poor
Pertussis (whooping cough) all countries · vaccine evidence020250per 1,000,000 total populationPertussis (whooping cough) reported cases: 2000 to 2025, latest 0 in 2025, lowest 0, highest 23.D · poor
Diphtheria all countries · vaccine evidence020250per 1,000,000 total populationDiphtheria reported cases: 2000 to 2025, latest 0 in 2025, lowest 0, highest 0.D · poor
Tetanus (total) all countries · vaccine evidence130202514.7per 1,000,000 total populationTetanus (total) reported cases: 2000 to 2025, latest 130 in 2025, lowest 6, highest 971.A · strong
Neonatal tetanus all countries · vaccine evidence3820250.1per 1,000 live birthsNeonatal tetanus reported cases: 2000 to 2025, latest 38 in 2025, lowest 0, highest 200.A · strong
Polio (paralytic) all countries · vaccine evidence520211.6per 1,000,000 <15 populationPolio (paralytic) reported cases: 2000 to 2021, latest 5 in 2021, lowest 0, highest 34.D · poor
Yellow fever all countries · vaccine evidence020250per 1,000,000 total populationYellow fever reported cases: 2000 to 2025, latest 0 in 2025, lowest 0, highest 361.B · good
Japanese encephalitis all countries · vaccine evidence020250per 1,000,000 total populationJapanese encephalitis reported cases: 2006 to 2025, latest 0 in 2025, lowest 0, highest 7.D · poor
Invasive meningococcal disease all countries · vaccine evidence119202114.7per 1,000,000 total populationtoo few pointsD · poor
Typhoid all countries · vaccine evidence020250per 1,000,000 total populationTyphoid reported cases: 2021 to 2025, latest 0 in 2025, lowest 0, highest 65984.C · weak

National schedule (latest WHO listing)

Show the schedule (43 rows)
National immunization schedule
VaccineDoseAgeTarget groupComment
BCGBCG (Baccille Calmette Guérin) vaccine1BGeneral/routine0-11 months
COVID19COVID-19 vaccine1AdultsAll adults, all older adults
COVID19COVID-19 vaccine1Health workersHealth and care workers
COVID19COVID-19 vaccine1Pregnant womenPregnant women
COVID19COVID-19 vaccine1Risk group(s)Adults with chronic conditions, other groups
DTWPHIBHEPBDTwP-Hib-HepB (Whole cell) vaccine1W6General/routine0-11 months
DTWPHIBHEPBDTwP-Hib-HepB (Whole cell) vaccine2W10General/routine0-11 months
DTWPHIBHEPBDTwP-Hib-HepB (Whole cell) vaccine3W14General/routine0-11 months
HPV2HPV-2 (Human papillomavirus 2-valent) vaccine1Y10HPV for females onlyFemales upon 1st contact
IPVIPV (Inactivated polio vaccine)1W14General/routine0-11 months
IPVIPV (Inactivated polio vaccine)2M9General/routine0-11 months
MALARIAMalaria vaccine1M6-M11General/routine · SUBNATIONALSurviving Infant
MALARIAMalaria vaccine2M7General/routine · SUBNATIONALSurviving Infant
MALARIAMalaria vaccine3M8General/routine · SUBNATIONALSurviving Infant
MALARIAMalaria vaccine4M18-M24General/routine · SUBNATIONALSurviving Infant
MRMR (Measles and rubella) vaccine1M9General/routine9-24 months
MRMR (Measles and rubella) vaccine2M15General/routine9-24 months
OPVOPV (Oral polio vaccine)1BGeneral/routine0-11 months
OPVOPV (Oral polio vaccine)2W6General/routine0-11 months
OPVOPV (Oral polio vaccine)3W10General/routine0-11 months
OPVOPV (Oral polio vaccine)4W14General/routine0-11 months
PCV13PCV-13 (Pneumococcal conjugate vaccine 13-valent) vaccine1W6General/routine0-11 months
PCV13PCV-13 (Pneumococcal conjugate vaccine 13-valent) vaccine2W10General/routine0-11 months
PCV13PCV-13 (Pneumococcal conjugate vaccine 13-valent) vaccine3W14General/routine0-11 months
ROTAVIRUS_1RV-1 (Rotavirus 1-valent) vaccine1W6General/routine0-11 months
ROTAVIRUS_1RV-1 (Rotavirus 1-valent) vaccine2W10General/routine0-11 months
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine11st contactAdultsWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine11st contactGeneral/routineWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine2+M1AdultsWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine2+M1General/routineWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine3+M6AdultsWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine3+M6General/routineWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine4+Y1AdultsWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine4+Y1General/routineWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine5+Y1AdultsWCBA
TD_STd (Tetanus toxoid and diphtheria for older children and adults) vaccine5+Y1General/routineWCBA
VITAMINAVitamin A supplements1M6General/routine0-59 months
VITAMINAVitamin A supplements2M12General/routine0-59 months
VITAMINAVitamin A supplements3M18General/routine0-59 months
VITAMINAVitamin A supplements4M24General/routine0-59 months
VITAMINAVitamin A supplements5M30General/routine0-59 months
VITAMINAVitamin A supplements6M36General/routine0-59 months
YFYF (Yellow fever) vaccine1M9General/routine0-11 months

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. Sierra Leone. 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/sle.html

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