TRIENNIAL REPORT ON VACCINATION IN BURMA FOR THE YEARS 1908-09 TO 1910-11.
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TABLE D.
Infantile protection during the triennium in the districts of Lower and Upper
Burma where registration of Vital Statistics is enforced.
Province.
Lower Burma ....
Year.
1908
1909
1910
Total ...
Upper Burma ...
1908
1909
1910
Total ...
Registered
births during
the calendar
year.
189,667
190,179
197,240
583,086
105,960
110,628
110,701
327,289
Registered
deaths under one-
year during the
calendar year.
38,233
42,089
43,241
123,563
20,541
26,235
28,582
78,353
Number of
children avail-
able for
vaccination.
151,431
154,090
150,999
459,523
82,019
84,393
82,119
248,961
Infants success-
fully vaccinated
during the
year ending the
31st March.
40,375
39,619
37,441
117,435
41,517
41,547
39,667
122,731
Percentage
of available
infants
protected
26.66
25.71
24.31
25.56
50.37
49.20
48.30
49.30
12. Vaccination in proportion to Births and according to Age.—Out of a total
of 459,523 chil-
dren available in
Lower
Burma,
117,435
were
successfully
vaccinated, or a
protection
of
25.56 per cent. as
compared
with
26.27 per cent.
in the previous
triennium.
The percentage of protected infants appears to have steadily decreased from
26.66 in 1908 to 25.71 in 1909 and 24.31 in 1910.
In Upper Burma a comparison with a previous triennium is impossible as
registration of births was only introduced in 1907. The registration of births is
confined to certain districts and it is in those districts only that results of vaccina-
tion are taken for comparison. Out of a total of 248,931 children available for
vaccination 122,731 were vaccinated. The percentage of 49.30 of available
infants is much in excess of the Lower Burma average, but shows the same
diminution throughout the years of the triennium as will be seen from the attach-
ed table) as is experienced in Lower Burma. The total number of successful
operations performed on children between the ages of 1 and 6 in the whole Province
was 486,298 or a decrease of 47,830 over the previous triennium. Vaccination
between these ages shows 51.86 per cent. successful in the Province, 51.10 per
cent. in Lower Burma and 52.73 per cent. in Upper Burma.
Statement I
and
Appendix A
13. Protection of Population.—The
proportion per mille of the population
successfully vaccinated in 1910-11 was 28.26 as compared with 32.66 and 30.89
in 1909-10 and 1908-09, respectively. It must be remembered however that the
1910 figures are based on the 1911 Census, and that if the proportion had been
calculated on the 1901 Census, the protection per mille in 1910-11 would have
been 32.52. During the present triennial period the protection per mille was
30.49 as compared with 33.16 in the previous triennium. The average ratios per
1,000 of the population protected by vaccination during the quinquennial period
preceding each of the three years under review is 32.25. From Appendix A it will
be seen that the ratio of protection per 10,000 in the quinquennium preceding
the year 1910-11 is lower than the previous quinquennial ratio, that is to say, with
a mean ratio of 329.99 successfully vaccinated per 10,000, the small-pox mor-
tality was 5.98 as compared with the previous quinquennium in which with a ratio
of 372.41 successfully vaccinated per 10,000, the small-pox mortality was 3.62.
Amherst heads the list of districts showing the greatest number of persons
successfully vaccinated per 1,000 of population, with 79.71 in 1910-11 as compared
with 68.83 in 1909-10 and 63.43 in 1908-09. in Amherst the average annual
number successfully vaccinated and the average annual death-rate from small-pox
during the previous five years were 67.95 and .39, respectively. Amherst is
followed by the Arakan Hill Tracts with 47.51, Rangoon with 46.28 and Mergui
with 43.46, successfully vaccinated per 1,000 of population. The lowest protection
per 1,000 is met with in the Northern Shan States 8.79, followed by Pyapôn
10.84, Myitkyina 12.33, Salween 14.92, Chin Hills 15.52, Akyab 15.92 and
Hanthawaddy 16.96. In Rangoon the protection per 1,000 for the previous five
years is 62.68 and the small-pox mortality 1.56. In Hanthawaddy the protection
for the same period is 9.49 and the small-pox mortality 1.08. Tavoy with 29.74
persons successfully vaccinated per 1,000 in 1910-11 against 56.09 in 1909-10
and 62.61 in 1908-09 shows a large decrease. The population of Tavoy has
increased by 24,658 over the 1901 Census. Had the calculation been made on
the previous Census the protection per mille would have been 36.41 in place of
29.74; but even this shows a large decrease in protection from previous years.
The average number of persons vaccinated successfully and the average annua
death-rate from small-pox per 1,000 of population in Tavoy during the previous
five years were 60.70 and .04, respectively.
14. Mortality from Small-pox.—The death-rate from small-pox in 1910 was Appendix C.
21 against .12 in 1909 and .15 in 1908. The quinquennial average is .47. A
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