Tanzania · Measles First-Dose Coverage (MCV1, WHO/UNICEF)
84%2025
Unit: percent of the target child cohort. Publisher measure: Measles-containing-vaccine first-dose (MCV1) immunization coverage among 1-year-olds (%) (WUENIC).
WHO/UNICEF WUENIC estimate of measles-containing-vaccine first-dose (MCV1) coverage in the target child cohort. The usual under-one target changes where national schedules recommend the first dose after 12 months; household surveys examine ages 12–23 months. This is neither second-dose completion nor immunity prevalence.
Measurement basis: WHO/UNICEF estimates of national immunization coverage (WUENIC), based on country administrative reports, household surveys and contextual review.
Reference-period cadence: annual.
Source update cadence: annual. This does not establish a publication date for an individual reading.
- MCV1 is the first measles-containing vaccine dose, not second-dose completion or immunity prevalence. Target ages depend on the national schedule; surveys examine children aged 12–23 months.
- WHO/UNICEF estimates can use interpolation or carry-forward when new empirical information is absent. Latest captured reference year 2025 does not prove a new 2025 observation for each country.
- No uncertainty endpoints or country-specific carry-forward flags are supplied in this capture. Missing intervals remain absent.
- WHO/UNICEF cap coverage estimates at 99%. A supplied 99 remains an unqualified source estimate, not a less-than bound or a claim of measured certainty.
Displayed values are rounded, with extra precision when needed to keep a positive estimate positive. Downloads retain the full numeric estimate and the publisher's original display text separately.
A “<” sign means strictly below the stated number. Numeric readings and uncertainty endpoints keep their own comparison signs. A number without a sign does not establish certainty or an observed outcome.
World Health Organization and UNICEF (WUENIC); retrieved 2026-10-01. Retrieval time is separate from an official publisher release vintage.
Download this immutable source capture · Source and coverage corrections
One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.
History and uncertainty
Charts plot numeric readings. Reported upper bounds create gaps; their values, uncertainty endpoints and source notes remain available in the table and downloads.
Reported estimates and uncertainty · 26 rows
Each comparison sign applies to its own reading or uncertainty endpoint. Values retain source precision. “Not reported” identifies an absent reading or uncertainty endpoint in this source capture.
| Country | Year | Reading | Lower endpoint | Upper endpoint | Publisher note |
|---|---|---|---|---|---|
| Tanzania | 2000 | 78 | Not reported | Not reported | — |
| Tanzania | 2001 | 86 | Not reported | Not reported | — |
| Tanzania | 2002 | 89 | Not reported | Not reported | — |
| Tanzania | 2003 | 97 | Not reported | Not reported | — |
| Tanzania | 2004 | 94 | Not reported | Not reported | — |
| Tanzania | 2005 | 91 | Not reported | Not reported | — |
| Tanzania | 2006 | 93 | Not reported | Not reported | — |
| Tanzania | 2007 | 90 | Not reported | Not reported | — |
| Tanzania | 2008 | 88 | Not reported | Not reported | — |
| Tanzania | 2009 | 91 | Not reported | Not reported | — |
| Tanzania | 2010 | 92 | Not reported | Not reported | — |
| Tanzania | 2011 | 93 | Not reported | Not reported | — |
| Tanzania | 2012 | 97 | Not reported | Not reported | — |
| Tanzania | 2013 | 99 | Not reported | Not reported | — |
| Tanzania | 2014 | 97 | Not reported | Not reported | — |
| Tanzania | 2015 | 95 | Not reported | Not reported | — |
| Tanzania | 2016 | 83 | Not reported | Not reported | — |
| Tanzania | 2017 | 90 | Not reported | Not reported | — |
| Tanzania | 2018 | 88 | Not reported | Not reported | — |
| Tanzania | 2019 | 89 | Not reported | Not reported | — |
| Tanzania | 2020 | 87 | Not reported | Not reported | — |
| Tanzania | 2021 | 80 | Not reported | Not reported | — |
| Tanzania | 2022 | 84 | Not reported | Not reported | — |
| Tanzania | 2023 | 84 | Not reported | Not reported | — |
| Tanzania | 2024 | 84 | Not reported | Not reported | — |
| Tanzania | 2025 | 84 | Not reported | Not reported | — |
One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.