28 The Philippine Journal of Science isw 
in other words, the occurrence of the abortive type in relation 
to injection. 
Complications . — Excluding eight cases, in which complications 
were already present on admission into the hospital, six de- 
veloped complications during treatment. In ninety-eighjt cases 
treated by Gay, (9) he observed thirteen that developed com- 
plications; namely, pyelitis, one case; lobar pneumonia, one; 
laryngitis, two; bronchopneumonia, two; toxaemia, one; haemor- 
rhage, four; and perforation, two. 
Table V shows the complications that were observed during 
treatment and before treatment was begun. 
Table V . — ComplicatioTis before and during treatment. 
Complication, a 
Devel- 
oped 
before 
treat- 
ment. 
Devel- 
oped 
during 
treat- 
ment. 
Pneumonia 
8 
s 
Intestinal hsemorrhage 
0 
>> 2 
Bronchopneumonia 
1 
1 
9 
6 
^ Relapses, three cases. 
^ One case had haemorrhage four days after injection ; another case, during convalescence. 
Early investigators, Krumbhaar and Richardson, (22) Waitz- 
felder, ( 48 ) and Robertson, ( 40 ) held the belief that vaccine 
therapy diminishes the complications. But Table V seems to 
show that it has no advantageous effect on the complications 
as compared with my controls. Whittington, (49) who has had 
considerable experience with vaccine therapy, reports that he 
observed a higher percentage of complications (49.5 per cent) 
under vaccine treatment, while his controls showed 46 per cent. 
His observation is based upon one hundred fifteen cases treated 
with vaccine and another one hundred fifteen under classical 
treatment. 
Relapses . — In my thirty cases, treated with vaccine, three 
had relapses, lasting only a few days. Gay advised subcuta- 
neous injection of vaccine a few days after the intravenous, so 
as to prevent relapse. Again, Whitting-ton found a higher per- 
centage of relapses in cases treated with vaccine (10.4 per cent) , 
in contrast to 7.8 per cent observed in his controls. In my 
controls I had five relapses (23.9 per cent), a higher number 
than shown by the cases that had undergone vaccine treatment 
(10 per cent). This difference in results may be due to the 
limited series that I have had so far. 
