1. 2016 Immunization Coverage Data at Subnational Level
A descriptive analysis
17 October 2017
WHO IVB/EPI

2. 2017 data collection of immunization subnational administrative data
Data requested:
Denominator (number of children targeted), numerator (number of children vaccinated) and coverage
For the 1st and 3rd dose of DTP- containing vaccines (DTP1, DTP3) and 1st dose of measles containing vaccine (MCV1)
For the 2nd subnational administrative level (referred as Admin2, often known as district)
Aggregated for the whole calendar year (from 1 January through 31st December )
From 194 WHO Member States
Data received:
Data for additional antigens, doses and vaccines: BCG, DTP2, DTP4, HepB birth dose, HepB1, HepB2, HepB3, Hib1, Hib2, Hib3, IPV1, MCV2, OPV0, PCV1, PCV2, PCV3, Pol1, Pol2, Pol3, RCV1, RCV2, Rota1, RotaC, TT2+, VAD1, Varicella and YFV
Reported to be Admin1 and/or Admin2
From 140 WHO Member States
Data received as of 10 October 2017
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3. 140 member states from all WHO regions shared 2016 subnational data
African Region
Region of the Americas
Eastern Mediterranean Region
European Region
South-East Asia Region
Western Pacific Region
Not available / no data received
The boundaries and names shown and the designations used on this map do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. ©WHO All rights reserved.
Not applicable
Source: Sub-nationally reported immunization system performance data for calendar year 2016 submitted on the Joint Reporting Form on Immunization .. Map production: Immunization Vaccines and Biologicals, (IVB). World Health Organization. 194 WHO Member States. Date of slide: 10 October 2017

4. Subnational administrative data available from 133 WHO Member States
Data received from more than 20,000 Admin2, in which live 2/3 of the global surviving infants
Data completeness:
39 countries reported on admin1 level only, 15 on admin2 level only, and 79 on both admin1 and admin2 levels
Data is reported from about 2,200 admin1 and more than 20,000 admin2
7 countries did not meet the minimum requirements set up by WHO for inclusion in the data set: only data from Member States that provided the data in electronical format, for the full year and that reported at least two indicators (coverage, numerator and denominator) were included
Subnational administrative data available from 133 WHO Member States
(61 countries with no subnational administrative data available – this includes 8 small countries with no subnational geographical divisions)
Population size:
From the reported data, the smallest admin2 has only 1 targeted child for immunization, and the largest admin2 is Karachi in Pakistan with a target population over 500,000 children
2/3 of the world's surviving infants live in countries reporting subnational administrative data
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5. Data completeness: illustration
39 countries reporting only admin1
15 countries reporting only admin2
79 countries reporting admin1 and admin2
Not available / no data received
The boundaries and names shown and the designations used on this map do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. ©WHO All rights reserved.
Not applicable
Source: Sub-nationally reported immunization system performance data for calendar year 2016 submitted on the Joint Reporting Form on Immunization .. Map production: Immunization Vaccines and Biologicals, (IVB). World Health Organization. 194 WHO Member States. Date of slide: 10 October 2017

6. Population size & coverage: illustration
Find more country visuals on: a/view.other.immu-admin2- dtp3?lang=en.
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7. DTP3 Admin2 coverage data
Target population (rounded average and median)
Distribution of reported Admin2 DTP3 coverage by coverage range
Average
Median
African Region
6,300
4,600
Region of the Americas
700
190
Eastern Mediterranean Region
29,500
10,600
European Region
820
390
South-East Asia Region
15,800
5,700
Western Pacific Region
1,200
1,000
Global
3,400
400
DTP3 data reported from over 20,000 admin2
Total Number of children vaccinated with 3 doses of DTPcv in all admin2: over 66,000,000
Reaching GVAP goal:
countries report 70% of their admin2 have more than 80% DTP3 coverage
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GVAP

8. DTP1 Admin2 coverage data
Target population (rounded average and median):
Distribution of reported Admin2 DTP1 coverage by coverage range
Average
Median
African Region
6,100
4,500
Region of the Americas
720
190
Eastern Mediterranean Region
29,500
10,600
European Region
980
440
South-East Asia Region
15,800
5,700
Western Pacific Region
1,200
1,000
Global
3,400
400
DTP1 data reported from over 20,000 admin2
Total Number of children vaccinated with 1 dose of DTPcv in all admin2: over 69,000,000
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9. MCV1 Admin2 coverage data
Target population (rounded average and median):
Distribution of reported Admin2 DTP1 coverage by coverage range
Average
Median
African Region
6,200
4,600
Region of the Americas
700
200
Eastern Mediterranean Region
29,500
10,600
European Region
720
360
South-East Asia Region
15,800
5,700
Western Pacific Region
1,200
1,000
Global
3,400
400
MCV1 data reported from over 20,000 admin2
Total Number of children vaccinated with 1 dose of MCV in all admin2: over 65,000,000
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10. Dropout at Admin1 level Global
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11. Dropout at Admin1 level African region
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12. Dropout at Admin1 level Region of the Americas
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13. Dropout at Admin1 level Eastern Mediterranean region
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14. Dropout at Admin1 level European region
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15. Dropout at Admin1 level South-East Asian region
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16. Limitations in the sub-national administrative data reported
Data completeness
Interpretation bias
Data quality
Not all member states included: 30% not included
20,000+ reported Admin2 represent about half of all Admin2 worldwide
Admin2 coverage data mainly originates from 3 regions: Africa, the Americas and South-East Asia
Some of the data received as Admin2 is actually for the 1st, 3rd or even lower level
Also, some Admin1 may refer to 2nd subnational administrative level. This may explain some of the disparities in terms of district sizes.
Some reported districts not linked to a specific geographical place (eg. migrant population, army camps, etc). These non- geographically based population often don’t have a denominator
The diversity in reporting limits comparability across countries.
Numerator errors: introduced when tallying, summarizing, and reporting the administered doses by health facilities and district administrations
Inaccurate denominators: population estimates often based on census data and derived estimates, leading to distortions over time as certain districts may grow faster than others
Numerator / denominator mismatches: population mobility creates mismatches between numerator and denominator, aggravated in countries with important migratory movements
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17. Notes
Please share your comments, questions and analysis to WHO through (subject line: Subnational data);
When using them, always source WHO products, data and information related to the immunization subnational administrative data: "Subnationally reported immunization system performance data for calendar year 2016 submitted on the joint annual data collection process.";
The slides, materials and visuals will be updated periodically.
Last update: 10 October 2017.
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