?18
If, therefore, the inoculated had remained as susceptible to plague as their
fellow townsmen they should have shown 270 cases with 223 deaths, instead of
129 and 54, respectively.    The number of cases therefore appears reduced by
52.2 per cent., and the mortality by 75.7 per cent.
Owing to the careful way in which the records of the inoculation work
were kept it is possible to pronounce an opinion on the effect of inoculation on
those actually in the incubation stage of plague. In Dhárwár 74 individuals
developed plague within 10 days of operation. As 10 days is generally admitted
to be the limit of the incubation period, we may assume that many of these
persons had already the plague germs in their bodies at the time of inocula-
tion. The following statement shows that the death-rate at no time exceeded that
among the uninoculated population (80.8%) and was generally very much
below this. It is evident then that inoculation of persons incubating plague,
does not do any harm, but on the contrary increases their chance of recovery.
		

Cases.	
Recoveries.
Deaths.	
Percentage of Mortality.
Inoculated with plague actually developed   ...
5
4
1
20.0
Developed plague on day of inoculation    ....          
5
3
2
40.0
„            „      within 2 days of inoculation      
13
9
4
30.7
,,           ,,       ,,      4   ,,      ,,       ,,     
7
2
5
71.4
,,           ,,       ,,      6   ,,      ,,       ,,                
19
8
11
57.8
,,           ,,       ,,     10  ,,      ,,       ,,     
25
21
4
16.0
Total within 10 days of inoculation
74
47
27
36.5

16. Gadag.-A town in the Dhárwár District of some 23,000 inhabitants.
Plague appeared here shortly after Dhárwár itself was attacked. From Dr.
Miss Corthorn's report of her work there, the following information has been
obtained.
In the 28 weeks from 18th November 1898 to the end of May 1899, which
is the period dealt with in the report, the incidence of plague was as fol-
lows :-
Average population.
Cases.
Deaths.
Case incidence.   
Case mortality.
Inoculated once,
1,365
32
14
2.3%
  43.7%
„         twice, 
11,639
161
69
1.4%
  42 8%
Not  inoculated,    
4,163
278
216
6.6%
  77.7%
If the 13,004 inoculated had suffered to the same extent as those not
inoculated, they ought to have had 868 cases with 674 deaths instead of 193 and
83, respectively; a reduction of 77.7 per cent. and 87.6 per cent. respectively.
17. Belgaum Cantonment.-A severe epidemic broke out in Belgaum Town
and Cantonment m April 1899 and continued throughout May, June, July and
August. In the Cantonment inoculation was vigorously pushed by the local
Plague Committee, who carefully watched and recorded the results. These are
given in the table below, which has been compiled from the Belgaum Collector's weekly report to government:--