Distribution of Leprosy. 131 is, the number of people who according to some anti-vaccina- tionists have run the risk of acquiring such diseases as syphilis or leprosy. It appears that during the year 1889-90 of 199,638,558 individuals only 2.9 per cent. were vaccinated, and this ratio has never been exceeded since the institution of vaccination. Were the operation generally practised, this ratio should be much higher, considering that vaccination is still in its infancy in India. Of the six millions vaccinated in India during 1889-1890 about five millions were infants. The number of vaccinations annually performed has gradually increased from two millions in 1871-1872 to six millions in 1889-1890, and the ratio ob- tained for the latter period is the highest yet reached. Ever since the official introduction of vaccination into India, chil- dren under six years of age have supplied the greatest number to the vaccinators. Now the death-rate of infants is extremely high and has always been so. Considering, therefore, that since the institution of vaccination never more than three per cent. of the total population have been operated upon during any one year, that of this number more than 75 per cent. are always infants, and that the mortality among the latter is very high, it is by no means improbable that at the present time less than ten per cent. of the total population in India are actually vaccinated. The following statement will also show to what a small extent vaccination is as yet practised in India. "In England and Wales of 886,198 births returned to the Board by the several vaccination officers, as registered during the year 1887, the number which at the time the return was made had been registered as successfully vaccinated was 733,986, or 82·8 per cent. of the whole, and if revaccinations are included, this percentage rises to 91·9 "48 In India, on the other (48) Nineteenth Annual Report of the Local Government Board. Supplement. Appendix A., No. 1, page 1. K2