M 89
5. The figures relating to vaccinal state of patients cannot, unfortunately, be regarded as absolutely accurate. This is so for many reasons, among them being forgetfulness, untruthfulness and inability to think clearly during illness. In the whole series, three patients gave a history of having been variolated in infancy. All had severe attacks of smallpox. All recovered. One woman of twenty with a pock-marked face, stated definitely that she had had smallpox in infancy. Her second attack was mild but was undoubtedly smallpox.
6. When the cases are divided into age groups, the results of vaccination become clearly apparent—see below.
Table I.
AGE GROUPS.
Recoveries Deaths Percentage mortality Under 1 Unvaccinated males 4 16 80 Vaccinated 8 3 27 Unvaccinated females 5 35 87 Vaccinated 3 2 40 1-5 Unvaccinated males 18 24 57 Vaccinated 7 2 22 Unvaccinated females 18 32 64 Vaccinated 3 3 50 5-15 Unvaccinated males 15 13 46 Vaccinated 8 2 20 Unvaccinated females 11 17 61 Vaccinated 10 8 44 15-30 Unvaccinated males 16 52 76 Vaccinated 147 29 16 Unvaccinated females 15 39 72 Vaccinated 70 20 22 30-60 Unvaccinated males 6 15 71 Vaccinated 46 7 13 Unvaccinated females 2 19 90 Vaccinated 30 11 27 Over 60 Unvaccinated female 1 1 100 Vaccinated Total 442 351