158
18. Rat spleen smears-Twelve thousand six hundred and seventy-nine examinations were made of smears for P. pestis. No positive findings were recorded.
(6) Clinical Pathological Procedures.
17. Trine examinatio-Eleven thousand four hundred and uinety-two routine, chemical and microscopic examinations of urine were carried out.
18. Friedinun lest for pregnancy-Seventy-seven such testa were performed. Owing to the abnormal dewand and limited number of suitable rabbits, operation was resorted to in all cases, and whilst the average number of operations per animal was four, some rabbits were able to withstand successfully six laparotomies.
19. Miscellaneous test-Two thousand one hundred and forty-nine teats of an unclassified nature were carried out.
(7) Preparation of Vaccine lymph.
20. Buffalo calves were used exclusively. A smaller quantity of lymph was prepared this year, suflicient to maintain stocks at a satisfactory level, and there was no particular difficulty in obtaining the number of calves required.
(8) Preparation of Vaccines.
21. Cholera vaccine--Blocks were in process of preparation at the end of the year. The main difficulty in this branch has been lack of adequate refrigeration space in which to store the vaccines ready for use.
22. Antirabic vaccine-The 561 litres of antirabic vaccine prepared is once again a record figure. In the absence of sheep, goats were used, and the vaccine issued continued to be of the Semple type in 4% & 2% dilutions.
TABLE X
Cases Treated with Antirabic Vaccine.
Anti-smallpox vaccine
41
cholera
T. A. B.
Plague
Rabic
FF
الراب الله
ти
www
10
150
TABLE XI
Vaccine Production.
Vaccine issued
Vaccine prepared
22.450 c.c. (In process
of manufac- ture)
23.768 c.c.
347.233 c.c.
22.680 C.C.
3.773 4.C.
И
82.042 c.c. (2%)
18,570 c.4. (4%)
38,110 cc (2%)
18,570 cc. (4%)
Grand Total ...
448,060 2.4
70.130 c.c.
(9) Examination of Water and Milk.
23. Water-Two thousand four hundred and thirty-seven samples of water from various sources were examined.
TABLE XII
Unfiltered raw water
Filtered
248
244
Filtered and chlorinated water from service tap... 1,899 Well water
Chinese pi
Non-Chinese
Treatment not completed
Treatment completed
Total
856
703
1.550
63
61
114
Grand Total
909
764
1.673
Water other than public supplies
Total
10
36
2,437
24. Bacteriological Analysis of Milk and Foods-One thou- sand one hundred and four examinations of milk were performed, chiefly at the instance of the Health Division. Nine hundred and twenty one examinations of a miscellaneous nature were also carried out as shown.
No comments yet.
Private notes are available after approval.