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This chart shows the booster coverage ratio across World Bank regions. It is calculated as the number of booster doses administered divided by the total population. Full coverage is achieved at 100 booster doses per 100 people.
Note that booster doses are currently captured as the first cycle of booster doses beyond the primary vaccination cycle.
The midpoints of the bubbles represent country observations of the booster coverage ratio. Also shown are the weighted group averages for the booster coverage ratio of each group, which are represented by a horizontal line.
The size of the bubbles in the chart reflects the total population size. The large golden bubble in EAP is China, whereas the large purple one in SAR is India.
For more background information, including on the universe of countries, check out the section below.
