22
Plains cow No. IV., aged 2½ years.
Mode of infection.—6—VI-97. Drenched with dung from rinderpest
animal and nasal discharge to nostrils.
Period of incubation from 6th to 16th June 1897, ten days. High tem-
perature during 5 days. Passed through a very mild attack of rinderpest.
4—I-99. Tested with 10 c. c. virulent rinderpest blood, after an
interval of 558 days, no reaction or symptoms followed.
Result.—Animal fully immune 558 days after attack of rinderpest.
Plains cow No. IX, age 3 years.
10—VI-97. Injected with 10 c. c. rinderpest bile obtained post-mortem
72 hours old. 21—VI-97. Ten days later inoculated with 0.2 c. c. virulent
blood. Maximum temperature 42.7°C. registered on 12th evening following
inoculation. Animal passed through a very smart attack of rinderpest.
Temperature 37.6°C. on the 4th July 1897. 4—I-99. Tested with 10 c. c.
virulent blood 562 days later. No reaction or symptoms of rinderpest followed.
Result.—Animal fully protected 562 days after inoculation of virulent
blood.
Plains cow, No. XIII, aged 6 years.
14—VI-97. Injected with virulent blood and bile (1:9), from bull No. 1.
Maximum temperature 40.4°C., on the 16th evening following inocu-
lation. No symptoms of rinderpest supervened. 14—II-99. Tested with
50 c. c. virulent blood, 581 days later. Temperature ran up to 41°C. on the 5th
evening following inoculation, but next morning registered 38.5°C. No symp-
toms of rinderpest followed.
Result.—Animal fully protected 581 days after previous inoculation.
Plains bull, No. XIX, aged 5 years.
21—VI-97 Inoculated subcutaneously with 10 c. c. virulent blood taken
from jugular vein of No. XI, on the 7th day after the rise in temperature.
Maximum temperature recorded in the evening of 7th day following inocula-
tion. No reaction.
4—I-99. Tested with 10 c. c. virulent blood, 553 days later. The
maximum temperature recorded during following ten days was 39.5°C., two small
vesicles appeared on the 11th day following inoculation. A very mild attack,
the symptom would have passed unnoticed in the ordinary course of events.
Result.—Animal protected by previous attack at date of first inoculation
with rinderpest virulent blood. At date of testing, protection passing off.
Hill bull, No. XXII., aged, body weight 419 lbs.
25—VI-97. Inoculated with 10 c. c. virulent blood taken from the
jugular vein of buffalo No. XV on the 4th day after the rise in temperature.
Maximum temperature 42.2°C. on the 4th day of disease. Dung coated with mucus
and blood, no vesicles in the mouth, no diarrhoea, off feed only for two days.
4—I-99. Tested with 10 c. c. virulent blood, 545 days after fall of
temperature to limit of health. No symptoms of rinderpest or thermal reaction
followed.
Result.—Animal fully protected after lapse of 545 days.
There is some doubt as to this animal being of true hill-breed, as it had
been backwards and forwards to the Bhabar each autumn to spring and
returned to the mountains April to November. The size and body weight
exceed that of the small hill cattle which rarely exceed 240 lbs., and the death
rate following rinderpest varies between 90 and 98% :—
TABLE No. 2.
No.
Cow IV
Cow IX
Cow XIII
.
Bull XIX
.
Bull XXII .
Breed.
Plains
„ .
„ .
„ .
Hill? .
Date of inocula-
tion.
6th June 1897 .
10th „ „ .
14th „ „
.
21st „ „ .
25th „ „
.
Inoculation
by what means.
Dung, Nasal dis-
charge.
Bile, 8 day of dis¬
ease.
Bile and virulent
blood, 13 day of
disease.
Virulent blood, 7
day of disease.
Virulent blood, 4
of disease.
Ante or Post-
mortem
material.
Ante-mortem .
Post-mortem .
„
.
Ante-mortem .
„
.
Date of testing
with
virulent blood.
4th January 1899
4th
„
1st February „ .
4th January „ .
4th „
„ .
Time
which had
elapsed.
Days.
558
562
581
553
545
REMARKS.
Fully protected.
„ „
„ „
Protection previous to
first
inoculation
when tested, immu-
nity passing off.
Fully protected.