( 2 )
It will be observed that there were 96,745 primary operations and 6,927
re-vaccinations against 101,225 and 4,377 in 1888-89, and 96,725 and 433 in.
1887-88.
The cause of the decrease in primary vaccination is attributable to an "un-
healthy season, which caused much sickness amongst the vaccinators and a high
mortality amongst infants.
The number of working days lost to vaccinators on the sick list (and who
submitted medical certificates) was 274, as against 127 in 1888-89, and the in-
crease in mortality amongst children under one year of age amounted to 5,990
as compared with the previous year.
There was an increase in re-vaccination of 2,550 over the figures of the
preceding year, and of 6,494 over those of 1887-88.
On the whole there has been a decrease of 1,930 in the total out-turn of
work by all establishments as compared with 1888-89, but an increase of 6,514
over the work of 1887-88.
Result of season's work of several
establishments.
5. The results obtained by the several estab-
lishments are shown below :—
TABLE No. 3—Showing percentage of results in vaccination (all establishments) for
three years compared.
Establishments.
Special vaccina-
tion establish-
ment
Dispensaries ...
Melghat ...
Total ...
Results in primary vaccination;
percentage of operations.
1887-88.
Successful.
90.6
93.3
91.5
96.3
Unsuccessful
2.3
?
7.8
2.4
Unknown.
1.1
?
.7
1.1
1888-89.
Successful.
96.4
95.5
95.0
96.3
Unsuccessful.
2.4
?
1.4
2.4
Unknown.
1.2
?
3.6
1.2
1889-90.
Successful.
95.7
95.7
94.3
95.2
Unsuccessful.
2.8
?
4.8
2.8
Unknown.
1.5
?
.8
1.4
Results in re-vaccination ; percentage
of operations.
1887-88.
Successful.
43.4
83.6
...
54.0
Unsuccessful.
45.7
?
...
45.7
Unknown.
8.9
?
...
8.9
1888-89.
Successful.
38.7
38.3
...
38.8
Unsuccessful.
45.0
?
...
45.0
Unknown.
16.3
?
...
16.3
1889-90.
Successful.
26.8
36.3
...
27.6
Unsuccessful.
58.2
?
...
58.2
Unknown.
15.0
?
...
15.0
Results in total operations; percentage
of operations.
1887-88.
Successful
96.4
93.
91.5
94.2
Unsuccessful.
2.5
?
7.8
2.6
Unknown.
1.1
?
.7
1.1
1888-89.
Successful.
94.0
92.1
95.0
98.9
Unsuccessful.
4.1
?
1.4
4.1
Unknown.
1.9
?
3.6
1.9
1889-90.
Successful.
91.1
91.5
94.3
92.1
Unsuccessful.
6.5
?
4.8
6.5
Unknown.
2.4
?
.8
2.4
In primary vaccination the percentages of success were lower than last year
by .7 per cent. in the special and Melghat establishments, but higher by 2 per
cent. in dispensaries.
In re-vaccination, out of 6,927 operations, 1,914 proved successful, or 27.6
per cent., as against 38.8 in 1888-89 and 54.0 in 1887-88.,
No fixed standard by which to gauge the results of re-vaccination can be
laid down, for susceptibility will vary according to the degree of protection
afforded by the primary operation and the prophylactic power of the original
lymph.
The experience of the Prussian army in 1833 showed that out of every 100
recruits re-vaccinated about 33 developed perfect vaccine vesicles, but from this-
date up to 1857 the annual percentages of successful results in re-vaccination pro-
gressively increased, reaching as high as 70 per cent. This impermanence of
protection has been attributed to impairment in the specific power of vaccine
contagion owing to its transmission, without renewal from the cow, through many
generations of men.
The employment of lymph in its original efficiency, direct from the cow or
newly humanized from the arms of children, as has been the practice in Berar
for the past 15 years, might, it is suggested, account for the greater permanency
of primary vaccination as indicated by the results of re-vaccination in this pro-
vince, compared with the German statistics above quoted-