Smallpox---Holland (1871)
The government returns in Holland show that the epidemic of 1871 attacked vaccinated and unvaccinated alike with unvarying impartiality.
| Province | Vaccinated | Unvaccinated |
| Guelderland | 1,658 | 1,063 |
| N. Brabant | 2,278 | 1,175 |
| N. Holland | 6,103 | 4,243 |
| Friesland | 151 | 84 |
| 10,190 | 6,565 |
In the same epidemic there were officially reported 39,090 cases, of which 15,691 were not vaccinated, 17,443 vaccinated, and 5,956 doubtful.
(Inquirer 5, p128)