330 THE INDIAN JOURNAL OF VETERINARY SCIENCE AND ANIMAL HUSBANDRY [ I, IV

                                                TABLE III— conld.

Time of Bleeding
after Injection.

Serum and varying
amounts of living
fixed virus mixed
and tested after
2 hours' incuba-
tion at 37° C.

Result of Rabbit inocula-
tion with 0.2 c. cm. of
scrum fixed virus
mixtures.

Rabicidal properties
of serum.

Amount of
Serum in
c. cm.

Amount of
1 : 100 F. V.
in c. cm.

23 days

0.5

0.125

Lived ....

}Present in low
} degree (4:1).

0.5

0.250

Died ....

0.5

0.500

Died ....

0.5

1.000

Died ....

37 days . . {

0.5

0.125

Lived ....

} Present+
} (2:1).

0.5

0.250

Lived ....

0.5

0.500

Died ....

0.5

1.000

Died ....

70 days . . {

0.5

0.125

Lived ....

} Present.+
} (1:1).

0.5

0.250

Lived ....

0.5

0.500

Lived ....

0.5

1.000

Died ....

88 days . . {


0.5

0.125

Lived ....

} Disappearing.

0.5

0.250

Died ....

0.5

0.500

Died ....

100 days . . {

0.5

0.125

Died ....

} Nil.

0.5

0.250

Died ....

From the above Table the results following upon the intracutaneous inocula-
tion of a human case with a 1 per cent, suspension of killed carbolised fixed virus
in a dosage of 5 c. cm. daily on 14 consecutive days (0.7 grammes) may briefly be
summarised:—

(1)  Rabicidal properties were absent from the serum 7 and 14 days after the
commencement of treatment (and this was true for the sera of all the eight cases
of wolf.bite treated).

(2)  Rabicidal properties were demonstrable in the serum 23 days after the
commencement of treatment, one unit volume of serum neutralising 0.25 volume
of a 1:100 fixed virus suspension in normal saline solution.

(3)  Rabicidal antibody content reached a maximum (1:1) some 50 to 60 days
after completion of treatment and thereafter subsided fairly rapidly.

(4)  The immune serum retained rabicidal properties for a period of three
months.

It seems, therefore, that although anti-rabies immunity may be fully
developed comparatively little rabicidal antibody production follows the exhibition