M 58
It is regretted that very little research work or publication of original scientific papers was possible during the year, owing to shortage of staff to cope with the routine work of the Institute.
2. PREPARATION OF VACCINE LYMPH.
The preparation of Vaccine Lymph was carried on during the year, Buffalo calves being used for its production.
The number of calves vaccinated was 90, an increase of 28 over the previous year, the average yield per calf was from 80 to 100 c.c. glycerinated lymph.
The number of tubes issued was 111,231, an increase of 53,727 tubes over that of last year. The quantity of lymph in stock on 31st December, 1928, was 4,615 c.c. calculated to be sufficient to vaccinate 138,450 persons.
The decrease in the stock over last year is accounted for by the increased prevalence of small-pox in the Colony, and the vaccination campaign carried out by the St. John's Ambulance Association.
The value of the free issue of lymph was $20,963.70, an increase of $9,972.20 over that of last year. This free issue went principally to the Port Health Officer, St. John's Ambulance Association and various Chinese Dispensaries.
The Institute continues to be able to supply all demands for lymph from private medical practitioners also the Naval and Military Forces.
This branch of the Institute is rapidly increasing its output and extra assistance is already required.
3. ANTI-MENINGOCOCCUS SERUM.
During the year 12,740 c.c. of serum was issued being an increase of 12,020 c.c. over last year's issue. About 26,420 c.c. was condemned and destroyed as being out of date for use.
The balance remaining in stock on 31st December, 1928, was 75,685 c.c.
The value of the serum issued was $210.00.
The antitoxic reaction of the serum was satisfactory, and sterility tests were carried out as required by the Therapeutic Substances Regulations 1927.