224
During the year tubes of vaccine have been supplied to the local Hospitals and the Gaol, as well as to the Naval and Military Authorities, to the private practi- tioners in the Colony, and to Canton and some of the other neighbouring ports.
Altogether 4,616 tubes of vaccine were issued, the value of which was $2,499, of which $315.50 was paid into the Bank.
Considerable care has been taken to keep up the efficiency of the Vaccine, and so far it has given the utmost satisfaction to all who have used it.
No. of Tubes issued.
Value of Tubes issued.
Month.
January,
353...
.$176.50
February,
450..
225.00
March,
1,277.
638.50
April,
675.
337.50
May,
205.
102.50
June,
326.
163.00
July,..
100.
50.00
August,
101..
50.50
September,
106.
53.00
October,
248.
195.00
November,
305.
292.50
December,
470
215.00
ISSUES OF VACCINE DURING 1902.
The Victoria Gaol,
1,520
The Tung Wah Hospital,.
1,100
The Government Civil Hospital,
730
The Alice Memorial Hospital,
222
The Sanitary Department,
100
The New Territory,
300
Vaccine paid for,
644
Total number of Tubes,
4,616
BACTERIOLOGICAL LABORATORY.
After the arrival of the Bacteriological apparatus from England, a series of interesesting post-mortems and bacteriological examinations were made upon cattle at the Dairy Farm, Pokfulam, and the Kennedy Town Slaughter-house. The animals in question suffered from what appeared to be chronic diarrhea. The stools were liquid and slimy and contained appreciable quantities of blood-stained mucus. There was loss of appetite, gradual emaciation, and the symptoms in the majority of cases gradually became aggravated, and was followed by death from exhaustion.
The post-mortems made upon such carcases were extremely interesting, as many of the lesions found might from a superficial glance raise the suspicion that the animals had succumbed to infection with Plague. There was great congestion of the skin, subcutaneous tissues and muscles. Ecchymosis in great abundance were usually present in the serous membranes. The stomachs and intestines were inflamed and presented ulceration, which in some cases was very extensive and extended over considerable areas of the mucous membrane. The mesenteric, re- troperitoneal, scapular and groin glands were always enlarged, and the cut surfaces presented considerable congestion with frequent blood extravasation.
Cultures were made on ordinary nutrient media from the intestines, glands, spleen, heart, blood, &c., and at the same time guinea pigs, pigeons, &c., were inoculated direct from the tissues of the dead carcase. There could be no chance of much contamination having taken place with other bacteria as the carcases used for those purposes were perfectly fresh, the almost comatose animal being killed immediately before the examination was made.
In addition to these, a large number of smears on microscopic glass slides were made from as many hæmorrhagic glands as possible, and the various internal
organs.
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