Table 1.
Countries where the vaccination experiments* used in the meta-analysis were carried out.
| Country | Number of Experiments | Percent |
|---|---|---|
| Australia | 12 | 10.2 |
| Denmark | 1 | 0.8 |
| France | 5 | 4.2 |
| Germany | 1 | 0.8 |
| Greece | 6 | 5.1 |
| Hungary | 1 | 0.8 |
| Iceland | 2 | 1.7 |
| India | 4 | 3.4 |
| Netherlands | 12 | 10.2 |
| New Zealand | 17 | 14.4 |
| Norway | 1 | 0.8 |
| Spain | 16 | 13.6 |
| United Kingdom | 9 | 7.6 |
| United States | 31 | 26.3 |
| Total | 118 |
* An experiment is defined as vaccine trial whose results are measured according to one of the three outcome variables: clinical signs, MAP isolation, gross or microscopic lesions.