M 61
Gonococcus vaccine.-
319. The total amount issued was 12,280 c.c. made up 98,570 c.c. at 1,000 million per c.c. and 3,710 c.c. at 100 million per c.c.
320. Autogenous vaccines.--Eighteen autogenous vaccines were prepared during the year.
321. Cholera vaccine. The presence of cholera again this year required the production of large quantities of cholera vaccine. This was prepared from strains isolated in the early summer from local cases. A sufficient supply was accumulated to take care of the requirements of next summer. In point of fact, 215,000 c.c. were prepared of which 20,140 were issued.
322. Anti-rabic vaccine.-Twelve animal brains were examined for rabies. Only one dog was found to be rabid. The table showing the distribution of the treatments given shows a large increase in the number of treatments completed, a gratifying point.
Table XLII.
Nationality Treatment not completed Treatment completed Total American 1 1 Belgian 1 1 British 16 25 41 Chinese 108 55 163 Indian 2 2 Japanese 1 1 Malayan 1 1 Outport 9 9 Portuguese 3 3 6 Grand total 130 95 225Total number of doses issued
(8) Examination of water and milk.
2066
323. Bacteriological analysis of water. One thousand five hundred and twenty-one samples of water from various sources, chiefly public supplies, were examined.
Table XLIII.
Unfiltered raw water 124 Filtered raw water 159 Filtered and chlorinated water from service taps throughout the Colony 1,209 Well water 7 Water from other than public supplies 22 Total 1,521324. Bacteriological analysis of milk.-One hundred and thirty-three analyses of milk were performed, chiefly at the instance of the health division.