REPORT OF THE KING INSTITUTE, GUINDY
13
has occurred this year has been confined to certain districts only and that a large
proportion of the district returns shows no appreciable departure from those sub
mitted for 1917-18. It is therefore extremely improbable that the quality of the
vaccine has altered to any appreciable extent.
The good results obtained in the Nilgiri district are extremely interesting
from this point of view. A success rate of 93.8 has been obtained with vaccine
which was identical with that supplied to the other districts.
Further evidence of an experimental nature is also forthcoming. Two
experiments were inaugurated with a view to proving or disproving the efficiency
or otherwise of lymph issued from the Institute. The result of one of these has
already been reported, for the information of Government, in letter R.C. No.
6796-5/V., dated 27th January 1919, to the Sanitary Commissioner, Madras.
A short account of both experiments may, however, be given as bearing upon
the point at issue.
The first of these was designed to eliminate the vaccine as a cause of the
irregularity observed in the returns submitted from different districts. Estimat
ing the quantity of paste that would be required for a full ten days' dispatch, all
batches of vaccine making up this quantity were mixed together using the most
meticulous precautions to ensure homogeneity. Two experimental batches were
made up, No. 177, consisting of the yield of 44 calves or 5 ordinary batches, and
No. 178, consisting of 47 calves or 5 ordinary batches. Samples from each were
issued in succession to every vaccinator outside Madras City, except in a few
cases where batch 178 was not sufficient to meet the demand.
No. 177 was issued between August 14th and 23rd and No. 178 between
August 24th and September 2nd.
TABLE XI.
Statement showing results obtained with two special batches of vaccine Nos. 177 and 178.
No.
1
2
8
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
District.
A.—Two days in transit.
Anantapur
...
...
...
...
Bellary
...
...
...
...
...
Chingleput
...
...
...
...
Chittoor
...
...
...
...
...
Coimbatore ... ... ... ...
Cuddapah
...
...
...
...
Ganjām
...
...
...
...
...
Godāvari
...
...
...
...
Guntūr
...
...
...
...
...
Kistna ...
...
...
...
...
Kurnool
...
...
...
...
...
Madura ... ... ... ... ...
Malabar
...
...
...
...
...
Nellore
...
...
...
...
Nilgiris
...
...
...
...
...
North Arcot
...
...
...
...
Rāmnād
...
...
...
...
...
Salem
...
...
...
...
...
South Arcot
...
...
... ...
South Kanara ...
...
...
...
Tanjore
...
...
...
Tinnevelly
...
...
...
...
Trichinopoly
...
...
...
...
Vizagapatam
...
...
...
...
Total ...
Batch No. 177.
Success.
517
354
47
819
282
...
...
225
562
1,501
194
313
360
651
64
1,206
337
843
832
51
709
578
486
932
11,863
Failure.
84
66
4
157
171
...
...
177
142
389
65
24
24
850
17
147
134
240
244
1
183
256
160
334
3,369
Percent
age.
86
84
92
84
62
...
...
56
80
79
75
93
94
65
79
89
72
78
77
98
79
69
75
74
78
Batch No. 178.
Success.
500
350
244
559
417
43
...
132
445
144
183
174
125
385
26
1,665
332
893
85
43
693
478
201
609
8,736
Failure.
64
143
44
76
180
49
...
22
171
3
54
22
5
129
3
168
94
146
2
...
57
140
4
68
1,644
Percent¬
age.
89
70
85
88
70
47
...
86
72
97
78
88
96
75
90
90
78
86
98
100
92
77
98
90
84
D