182
(6) Clinical Pathological Procedures.
17. Urine examinations-Twelve thousand nine hundred and fifty-three routine and microscopic examinations of urine were carried out.
18. Pregnancy teats-Sixty Friedman tests were perform- ed. Arrangements were in hand to import Xenopus frogs and institute a frog pregnancy test, but experience in twenty-four tests using the readily available local species of male frog, check- ed by the Friedman, suggests that this simple procedure is likely to become the method of choice in due course.
19. Miscellaneous tests-Nine hundred and fifty examina- tions of an unclassified nature were carried out.
(7) Preparation of Vaccine Lymph,
20. Buffalo calves were again used exclusively, and expected difficulties in supply did not materialise. Two new vaccinating tables made by the Stores Department were put into use. Con- ditions under which calf lymph is produced continue to be some- what primitive, but do not appear to have any adverse effect on the quality of the lymph.
(8) Preparation of Vaccines.
21. Cholera vaccine-Stocks were maintained in readiness for the routine inoculation campaign and the possibility of an outbreak. Refrigeration space was increased considerably.
22. Antirabic vaccine-An outbreak of rabies in the Main- land responsible for 40 known canine and 20 human cases of rabies caused vaccine demand and production to reach abnor- mally high figures, and whereas last year 56 litres of vaccine were issued, this year 185 litres were given out. The vaccine continued to be of the Semple type in 4% and 2% dilutions, and for the greater part of the year, until sheep became available, goats were used in its production.
Of the twenty cases of rabies in humans, 15 had not received any anti-rabic treatment. Of the remaining five, one adult who had three bites on the thumb died 19 days later, three days after having completed a full course of treatment; one child of 8 years, bitten on the buttock, hand and lower lip, died twenty-three days later in spite of a full course of treatment: two cases had received only six injections at irregular intervals; and one had a break of ten days early in the course of treatment.
180
One adult patient who completed a full course of anti- rabic treatment developed three weeks later a transverse lumbo- dorsal myelitis, with sensory loss which reached to the level of the 7th dorsal segment. However, ultimate progress was good and eventually be made a complete recovery. apparently was one of the rare post-vaccinal paralyses.
Cases Treated with Anti-rabic Vaccine.
TABLE X.
This case
Treatment
not Treatment completed completed
Total
Chinese Non-Chinese
1,908
157
1,849 171
3,757
328
Grand total
2,065
2,020
4,085
Vaccine Production.
TABLE XI.
Anti-smallpox vaccine
IN
**
Vaccine
prepared
13,570 cc.
כד
**
J
38,740
1,100 "> 116,300 66,740
12
Vaccine
issued
Cholera
1
www.
T. A. B. Plague
13
798,860 119,250
TP
35,288 c.c. 451,440
1,560
Rabic
F
**
(2%)
M
(4%)
153,280 73,840
Lapinised rinderpest virus
vaccine
460
Grand total
1,100,820
709,608
(9) Examination of Water and Milk.
23. Water-Two thousand three hundred and twelve samples of water from various sources were examined. Iri general, it can be said that, bacteriologically the Colony's water supply is most satisfactory.
Unfiltered raw water
Filtered
TABLE XII
Filtered and chlorinated water from
service. Lap
---------
284 279
1,609