6

6. The following statement compares
the primary and re-vaccinations in rural
areas performed during the year under
review and the previous year :—

Districts.

Primary Vaccinations.

Percen-
tage of
increase +
or
decrease —.

Re-vaccinations.

Percen-
tage of
increase +
or
decrease —.

1926-27.

1927-28.

Difference.

1926-27.

1927-28.

Difference.

Burdwan .. ..

33,710

40,290

6,580

+ 19.5

22,022

28,156

6,129

+ 27.8

Asansol Mining Settle-
ment .. ..

16,736

13,142

3,594

-21.5

46,096

16,026

30,070

-65.3

Birbhum .. ..

36,616

37,360

744

+ 2.0

38,654

38,432

222

-0.6

Bankura .. ..

32,524

36,694

4,170

+ 12.8

36,133

35,318

815

-2.3

Midnapur .. ..

83,207

143,629

60,422

+ 72.6

107,186

238,977

131,791

+ 123.0

Hooghly .. ..

20,867

19,862

1,005

-4.8

17,755

24,871

7,116

+ 40.1

Howrah .. ..

22,080

24,626

2,546

+ 11.5

13,689

14,586

897

+ 6.5

24-Parganas ..

61,990

112,643

50,653

+ 81.7

37,732

40,918

3,186

+ 8.4

Nadia .. ..

38,612

45,045

6,433

+ 16.6

33,219

52,126

18,907

+ 56.9

Murshidabad .. ..

49,071

55,958

6,887

+ 14.0

79,501

102,956

23,455

+ 29.5

Jessore .. ..

47,505

42,951

4,554

-9.6

35,579

41,035

6,456

+ 15.3

Khulna .. ..

45,793

52,390

6,597

+ 14.4

21,344

24,087

2,743

+ 12.8

Rajshahi .. ..

41,992

40,740

1,252

-3.0

52,131

58,694

6,563

+ 12.6

Dinajpur .. ..

77,263

83,733

6,470

+ 8.4

32,144

55,076

22,932

+ 71.3

Jalpaiguri .. ..

21,227

29,510

8,283

+ 39.0

29,399

34,478

5,079

+ 17.3

Darjeeling.. ..

10,392

8,566

1,826

-17.6

9,498

9,929

431

+ 4.5

Rangpur .. ..

75,354

93,779

18,425

+ 24.4

43,383

70,122

26,739

+ 61.6

Bogra .. ..

27,460

30,574

3,114

+ 11.3

43,840

39,400

4,440

-10.1

Pabna .. ..

77,275

74,301

2,974

-3.8

80,435

138,453

58,018

+ 72.1

Malda .. ..

32,312

27,467

4,845

-15.0

44,455

157,384

112,929

+ 254.0

Dacca .. ..

131,199

106,214

24,985

-19.1

24,441

54,883

30,442

+ 124.5

Mymensingh ..

256,094

240,839

15,255

-6.0

113,168

146,471

33,303

+ 29.4

Faridpur .. ..

53,573

64,993

11,420

+ 21.3

58,769

63,997

5,228

+ 8.9

Bakarganj .. ..

101,091

126,696

25,605

+ 25.3

7,179

23,645

16,466

+ 229.3

Chittagong .. ..

54,530

64,542

10,012

+ 18.3

43,240

58,387

15,147

+ 35.0

Noakhali .. ..

62,983

78,047

15,064

+ 23.9

60,356

104,901

44,545

+ 73.8

Tippera .. ..

110,913

121,717

10,804

+ 9.7

40,365

101,420

61,055

+ 151.3

Chittagong Hill Tracts

6,810

6,242

568

-8.4

3,174

3,583

409

+ 12.9

Total ..

1,629,179

1,822,550

193,371

+ 11.9

1,174,887

1,778,306

604,419

+ 51.3

Primary vaccinations increased in all
but Asansol Mining Settlement, Hooghly,
Jessore, Rajshahi, Darjeeling, Pabna,
Malda, Dacca, Mymensingh and the
Chittagong Hill Tracts; whereas re-
vaccination was in excess compared with
the previous year in all the districts of
the province except Asansol Mining
Settlement, Birbhum, Bankura and
Bogra. The increase in the number of
primary vaccinations was most notice-
able in the 24-Parganas (81.7 per cent.)
and Midnapur (72.6) and in re-vaccin-
ations in Malda (254.0 per cent.),
Bakarganj (229.3), Tippera (151.3),
Dacca (124.5) and Midnapur (123. 0).
The decrease in the number of primary
vaccinations will be discussed later
when dealing with the degree of pro-
tection among available infants (para-
graph 9 infra). The decrease in the
number of vaccinations in Asansol
Mining Settlement amounting to 21.5
per cent. in the case of primary and 65.3
per cent. in re-vaccinations has been
ascribed by the Chief Sanitary Officer to
the decreased number of persons requir-
ing vaccination and re-vaccination and
also to the absence of small-pox in epi-
demic form. The District Health
Officer, Birbhum, attributes the decrease
in re-vaccinations to his district being al-
most free from small-pox, although ac-
cording to the epidemic diseases returns
there were 1,024 deaths from small-pox
in that district. The District Health
Officer, Bankura, explains the reduction
by " the less prevalence of small-pox
cases " in his district. In Bogra the re-
vaccinations decreased by 4,440 or 10.1
per cent., compared with the previous
year in spite of the fact that 2,710 deaths
occurred from small-pox there during
the year under review. The District
Health Officer makes " a greater atten-
tion paid to primary vaccination "
responsible for this reduction. The
District Health Officer is very much mis-
taken if he believes that " a greater
attention paid to primary vaccination "
alone at the expense of re-vaccination
will help him in averting epidemics of
small-pox; in fact the high mortality
from small-pox in this district can be
appropriately ascribed to negligence in
carrying out an intensive campaign of
re-vaccination as was undertaken in
many other districts where epidemics