xvi
TABLE IV.
Num
-ber.
Number
of the case.
Name.
Levaditi's modification.
Original method.
1
386
Dr. K. Rayapuram
Negative
Negative.
2
387
M., Rayapuram
Positive strong
Positive moderate.
3
388
Pte. B., Poonamalle
Negative
Negative.
4
389
Pte. F., Poonamalle
Do.
Do.
5
390
Pte. S., Poonamalle
Do.
Do.
6
391
Case of Dr. K. P.
Do.
Do.
7
392
Do.
Do.
Do.
8
393
Dr. Md. O., Negapatam
Do.
Do.
9
394
G. D., Rayapuram
Positive moderate
Positive moderate.
10
395
S. Nair do.
Do. do.
Do. do.
11
396
Pte. C., Poonamalle
Do. weak
Do weak.
12
397
Gr. T., Poonamalle
Negative
Negative.
13
398
Gr. C., Poonamalle
Do.
Do.
14
399
Pte. M., Poonamalle
Do.
Do.
15
400
F. W., care of Major C.
Smith, I.M.S.
Do.
Do.
16
401
C. Rayapuram
Do.
Do.
17
402
S. Chetti, Rayapuram
Positive strong
Positive strong.
18 403
Case of Dr. K. P.
Negative
Negative.
19
414
A., Rayapuram
Do.
Positive trace.
20
418
V. do.
Do.
Do. do.
This table gives an analysis of 20 bloods examined by two methods, Levaditi's and original.
The results agree in most of them. In two cases in which a negative result was obtained by
Levaditi's method a positive (trace) reaction was got by the original method. Both these cases
were of early infection, one having a phagadænic sore and the other rupial ulcers. These cases of
primary syphilis or commencing infection seem to he missed by Levaditi's method. Though
these results are too few in numbers to justify a decision, still I am of opinion that further experi-
ments will prove the superiority of the original method over all others especially in diagnosing
very early cases of syphilis.
TABLE V.
—
Primary syphilis.
Secondary syphilis.
Tertiary syphilis.
+
−
Percentage
of positive
+
−
Percentage
of positive.
+
−
Percentage
of positive.
Original
6
6
50
39
11
78
30
16
65
Levaditi's
8
15
35
20
5
80
10
1
90
Thirty-five bloods of cases giving a definite clinical history of primary syphilis were tested
by two methods, the original method giving positive result in 50 per cent. and Levaditi's method
giving positive result in 35 per cent. of cases. Most of the cases of primary syphilis giving a
negative result were of 3 to 4 weeks' duration and although it is natural to expect a delay in
the establishment of the reaction, in some cases it occurred very early.
Seventy-five bloods of cases giving a history of secondary syphilis were tested with the
result that the original method gave 78 per cent. and Levaditi's 80 per cent. of positive results.
Both methods are equally reliable in secondary syphilis, the 20 per cent. of cases missed being
probably due to inaccurate history and the frequent practice of Indian patients resorting to
native hakim treatment, which invariably consists of mercurials.
Fifty-seven bloods of cases giving a history of tertiary syphilis were tested with the result
that the original had 65 per cent. and Levaditi's method 90 per cent. of positive finds. The less
accurate results shown by the original method are probably due to defective or deteriorated
antigen and cannot be considered inherent to the method.
The effect of Salvarsan on the reaction.—In 28 cases bloods were examined before and after
Salvarsan injection. A table giving the results obtained is herewith appended.
[Statement.