2
REPORT OF VACCINATION IN BENGAL
Increase, general.
Rate of increase.
supplementary table. The total for the year is thus rather within than above the mark, leaving
out of account work done by ex-inoculators, of which returns have not been rendered. It is
satisfactory to find that the increase is general, shared by all the circles (Ranchee excepted),
and is apparent also in dispensary work. The amount of work done by the circle establish-
ments amounted to 75.59 per cent. of the whole against 72.3 in 1873-74. The ratio of increase
per cent. was as follows:—
Detail.
Calcutta and Suburbs 6.06; Metropolitan circles 23.78; Darjeeling 18.98; Sonthal
Pergunnahs 34.23 ; Eastern Bengal circle 29.25 ; and dispensary vaccination 7.13. The
increased establishment of the Sonthal Pergunnahs and Eastern Bengal circles account for
their higher figures. In the other instances the increase of work, without increase of staff,
is all the more creditable.
The decrease in the case of the Ranchee circle will be fully explained below.
Vaccination still
insufficient.
The sum total exceeds that of any previous year, and approaches 40,000 less than one
million vaccinations. This seems a great outturn for one season; but it falls very far short
of what is necessary to vaccinate and maintain vaccinated the enormous population of these
provinces.
Successful
vaccinations.
High rates of suc-
cess in Calcutta,&c.
Ratio of success
in secondary
vaccination.
Dispensary records
less reliable than
circle returns.
STATEMENT No. III.
CIRCLES.
Calcutta and Suburds ... ... ... ...
Metropolitan Circles
...
...
...
...
Darjeeling Circle
...
...
...
...
Ranchee
„
...
...
...
...
Sonthal Pergunnahs Circle ... ...
Eastern Bengal
„ ... ... ... ...
Dispensary vaccination ... ... ...
Total ...
RATIO PER CENT. OF SUCCESSFUL CASES.
In primary vaccination
1874-75.
99.79
99.80
91.15
87.00
93.99
99.53
92.85
96.53
1873-74.
99.82
99.80
95.73
90.81
96.19
90.44
89.89
96.18
In secondary vaccination.
1874-75.
17.95
65.85
......
......
...... 75.00
71.49
23.41
1873-74
17.49
21.42
......
...... 85.45
60.25
67.93
22.79
4. Successful operations.—The successful operations amounted to 883,772, or 92.37
per cent. of the whole.
This ratio differs from
that given in the adjoin-
ing statement, because
(1) 23,631, or 2.33 per
cent., were re-vaccina-
tions, which give a much
lower rate of success than
primary operations; and
(2) in some returns of
dispensary vaccination
the results of operations
are not noted, the aggre-
gate number of oper-
ations only being given.
These cases have been
left out in computing the
ratio of success, and that accounts for the ratio in dispensary operations being so much higher
than it was last year. It will be observed that the figure for the previous year has been
corrected on this principle, and has accordingly risen from 79.12 to 89.89. The Calcutta,
Metropolitan, and Eastern Bengal circles, maintain their high percentages, and the several
superintendents vouch for the accuracy of the figures from personal verification. The
Darjeeling, Sonthal Pergunnahs, and Ranchee ratios have declined, but the dispensary rate
has somewhat improved. The provincial total is somewhat better than last year's. The ratio
of secondary vaccination is nearly the same as that of 1873-74. The Calcutta rate must be
accepted as coming nearest the truth, the numbers being largest, and the figures most trust-
worthy. The proportion of successful re-vaccinations in Calcutta varies very little from year
to year. The rates shown by different circles will be further discussed in commenting
specially upon their work. It may be stated generally here that the figures shown under
dispensary vaccination are not entitled to the same degree of reliance as those recorded by
the circles.
Number of
operations per
vaccinator.
General
improvement.
STATEMENT No. IV.
CIRCLES.
Metropolitan Circles
...
...
Eastern Bengal ... ...
Calcutta and Suburbs
...
...
Ranchee
...
...
...
...
Darjeeling ... ... ... ...
Sonthal Pergunnahs
...
...
Number of operations
per man.
1874-75.
3941.9
1761.1
1589
1494.5
1488.3
914.6
1873-74.
3006.6
1539.1
1847.4
1870.5
1163.8
2506.5
5. Number of operations performed by each vaccinator.—This information is supplied by
Statement No. IV, and is only given for the circles,
because the results, as far as dispensary vaccina-
tion is concerned, are so unequal, that a mean figure
would be almost devoid of significance. The
results shown by the statement are on the whole
satisfactory.
The Metropolitan, Eastern Bengal and Darjee-
ling circles show an improvement, and the others
a falling off, comparatively trivial in the case
of Calcutta and Ranchee, but serious in that of the
Sonthal Pergunnahs. This was due to the late arrival of some of the vaccinators, and the
small amount of work done by some others for various reasons. The mean of 2303.2 per man
is a satisfactory figure.
Excellent results in
the Metropolitan
circles.
The result shown by the Metropolitan circles is higher than anything that has yet been
shown in Bengal for any year, and is very creditable. It proves that these circles are now
working smoothly, and with less friction than formerly, or than any other circle now.