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:—

            * 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