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Countries of the 100 top-cited studies on vaccine.
| Country | Number of study | Total citation times | Average citation times |
|---|---|---|---|
| USA | 70 | 67581 | 965 |
| Switzerland | 4 | 2501 | 625 |
| Finland | 4 | 3411 | 853 |
| England | 4 | 3375 | 844 |
| Canada | 3 | 2902 | 967 |
| Netherlands | 1 | 670 | 670 |
| Germany | 3 | 3902 | 1301 |
| China | 2 | 1819 | 910 |
| Brazil | 2 | 1897 | 949 |
| Sweden | 1 | 749 | 749 |
| Spain | 1 | 703 | 703 |
| Italy | 1 | 822 | 822 |
| France | 1 | 1044 | 1044 |
| Chile | 1 | 1151 | 1151 |
| Belgium | 1 | 669 | 669 |
| Australia | 1 | 1132 | 1132 |
