M(1)33
5.-ANTI RABIC TREATMENT.
The Pasteur strain obtained from Saigon was kept going during the year, and the local strain isolated is now nearly fixed and ready for use.
160 patients were treated during the year, and 3,840 separate graduated doses were issued, an increase of 528 over last year.
All anti-rabic treatment is now a free issue, as regards the vaccine, by Government order.
The value of the free issue was $5,472.00.
Examination of brains from suspected dogs was carried out regularly during the year for the Colonial Veterinary Surgeon.
84 dogs' brains were examined for the presence of Negri bodies, of which 12 were positive and 72 were negative.
6.-CLINICAL EXAMINATION.
The number of specimens examined and reported upon from various Government Institutions and Private Practitioners, was 7,903, an increase, over last year, of 572 specimens.
74 miscellaneous specimens were examined.
7.-RIDEAL WALKER TEST.
Six specimens of disinfectants were examined by the Rideal Walker Test, at the request of the Sanitary Department.
8.—ANTI-PLAGUE WORK.
Post-mortem examinations of 93,288 rats were carried out at the Victoria Mortuary by the Medical Officer in Charge.
Microscopic examinations for the presence of B. Pestis were carried out at the Bacteriological Institute on 3,672 specimens.
A few rats recovered from lighters after fumigation, were specially examined at the request of the United States Consulate.
No cases of plague-infected rats were detected during the year.
9.-BACTERIOLOGICAL EXAMINATION OF WATER SUPPLIES. During the year the Bacteriologist was relieved from post-mortem work at the Victoria Mortuary in order that the public water supplies might be examined more frequently and systematically.
The total number of samples examined was 1,084, an increase of 494 samples over last year, of these samples 835 were from public taps or street fountains,