Fourteenth Triennial Report on Vaccination in Bengal
for the years 1926-27, 1927-28 and 1928-29.
I have the honour to submit the
following Report on Vaccination in
Bengal for the triennium ended with
1928-29.
I was in charge of the Vaccination
and Vital Statistics Bureau throughout
the triennium.
2. Strength of Staff.—The following
table shows the strength of the staff in
the rural and urban areas of the pro-
vince during the triennial period under
review:—
Classes.
(a) Rural areas.
Vaccination Ins-
pectors and
Sub-Inspec-
tors*..
Vaccinators..
(b) Mufassal mu-
nicipalities.
Vaccination Ins-
pecting Offi-
cers
Vaccinators..
(c) Calcutta.
Inspecting Offi-
cers..
Vaccinators..
1926-27.
143
1,596
2
144
16
58
1927-28.
125
1,535
5
157
16
58
1928-29.
131
1,832
2
154
18
60
Total.
399
4,963
9
455
50
176
Aver-
age.
133
1,654
3
152
17
59
Average of the
previous trie-
nnium.
129
1,495
5
147
16
55
* Excluding officers of the rural public health organization.
3. General Vaccination Statistics.—
The statement below shows the work
done in the province during the period
under review:—
The appended table is self-explana-
tory. The province has been visited by
the usual quinquennial epidemic of
small-pox, since the close of the year
1924, and the all-round increase is due to
the vigorous anti-vaccination campaigns
started by practically every local body.
The excess in the average number of
revaccinations performed during the
triennium under review of 147.4 per
cent. and the increase of 258.3 per cent.
in the recess work, are very creditable
indeed. The apparent decrease in the
percentage of successful primary cases,
and the unchanged rate of successful
revaccination cases in which the results
were known, are due to the fact that
during the epidemic season, the vaccina-
tors were too busy with vaccinating
every person they could lay their hands
upon and could not spare sufficient time
to note the result of every operation per-
formed by them and hence the majority
of the cases were returned as " un-
known."
A comparison of the work done in
1928-29 with the previous year shows an
excess of 1,307,037 in the number of
persons vaccinated and of 1,305,582 in
that of the operations performed, the
latter comprising of 123,543 in the
number of primary and of 1,182,039 in
that of revaccinations. The number of
successful operations also increased by
82,162 in the case of primary and by
741,061 in that of revaccinations. 434
more persons on an average were vacci-
nated by each vaccinator. While the
Headings.
Total number of persons vaccinated
Total number of vaccinations per-
formed.
(a) Primary Vaccinations..
Successful..
(b) Revaccinations..
Successful..
Average number of persons vacci-
nated by each vaccinator..
Percentage of successful cases in
which results were known—
(a) Primary..
(b) Revaccinations..
Ratio of successful
vaccinations
per mille of population
Number of children
successfully
vaccinated—
(a) Under one year..
(b) One year and under six
years
Total number of vaccinations per-
formed
during the non-vacci-
nation season.
(a) Primary..
(b) Revaccinations..
Present triennium.
1926-27.
3,276,975
3,278,581
1,741,801
1,657,657
1,536,780
800,543
1,761
95.1
52.09
52.8
274,398
1,109,756
393,875
113,119
280,756
1927-28.
3,969,367
3,975,837
1,928,674
1,814,715
2,047,163
1,092,249
2,145
94.1
53.3
62.2
281,727
1,192,010
1,162,525
335,901
826,624
1928-29.
5,276,404
5,281,419
2,052,217
1,896,877
3,229,202
1,833,310
2,579
92.9
56.5
79.7
262,982
1,222,631
1,139,924
295,472
844,452
Average.
4,174,249
4,178,612
1,907,564
1,789,750
2,271,048
1,242,034
2,162
94.0
53.9
64.9
273,036
1,174,799
898,775
248,164
650,611
Average
of the
previous
triennium.
2,581,364
2,583,623
1,665,623
1,602,006
918,000
492,343
1,464
96.1
53.9
44.8
311,052
1,039,638
250,866
86,181
164,685
Increase +
or
decrease—.
+ 1,592,885
+1,594,989
+ 241,941
+ 187,744
+ 1,353,048
+ 749,691
+ 698
—2.1
± 0
+ 20.1
—38,016
+ 135,161
+ 647,909
+ 161,983
+ 485,926
Percentage
of increase
+ or de-
crease —.
+ 61.7
+ 61.7
+ 14.5
+ 11.7
+ 147.4
+ 152.3
+ 47.7
..
..
+ .44
—12.2
+ 13.0
+ 258.3
+ 187.9
+ 295.1