M 121
Preparation of fresh serum had been in abeyance previous to the epidemic owing to the large stock on hand, so that only 7,350 c.c. was prepared during the year. This leaves us with approximately 30,455 c.c. in stock. Two ponies are being immunized steadily at the present time for the production of serum, and a fairly large quantity should be accumulated in the coming year provided the disease remains in abeyance.
The opportunity has been taken to add new strains of virulent meningococci isolated during the progress of the epidemic to the strains maintained for the production of antiserum. This should do something to strengthen the antigenic value of our antiserum.
The preparation of gonococcus vaccine still shows a marked increase over previous years, as was predicted in last year's report; the amount being 4,370 c.c. This is nearly double the amount prepared in 1930. While the method of preparation has been slightly improved so as to give a higher yield this is still short of the ideal and further improvement is still being sought.
The epidemic of cholera was responsible for a large and sudden demand for anti-cholera vaccine. We were able to fill all demands made in this connection and altogether 17,272 c.c. was supplied. Of this amount 1,476 c.c. was distributed outside the Colony.
The number of autogenous vaccines prepared shows a great increase over the previous year, namely 47 as against 26.
Anti-rabic vaccine was prepared for use in the Colony as usual. The method of preparation of the vaccine which had been in use for some years was revised and the method used in Ceylon, Malaya, India, etc. substituted in its place. The prepared vaccine consists of a 1% dilution of brain and cord substance in 0.5% carbolic saline. The dosage for the average adult case is 5 c.c. daily subcutaneously for 14 doses. The necessary fixed virus is maintained by regular passage through rabbits at fortnightly intervals.
One hundred and sixty-one courses of treatment were instituted, but of this total only fifty-four completed the prescribed course. Actually one thousand five hundred and seventy doses were issued.
M 121
Preparation of fresh serum had been in abeyance previous to the epidemic owing to the large stock on hand, so that only 7,350 c.c. was prepared during the year. This leaves us with approximately 30,455 c.c. in stock. Two ponies are being im- munized steadily at the present time for the production of serum, and a fairly large quantity should be accumulated in the coming year provided the disease remains in abeyance.
The opportunity has been taken to add new strains of virulent meningococci isolated during the progress of the epidemic to the strains maintained for the production of antiserum. This should do something to strengthen the antigenic value of our antiserum.
The preparation of gonococcus vaccine still shows a marked increase over previous years, as was predicted in last year's report; the amount being 4,370 c.c. This is nearly double the amount prepared in 1930. While the method of preparation has been slightly improved so as to give a higher yield this is still short of the ideal and further improvement is still being sought.
The epidemic of cholera was responsible for a large and sudden demand for anti cholera vaccine. We were able to fill all demands made in this connection and altogether 17,272 c.c. was supplied. Of this amount 1,476 c.c. was distributed outside the Colony.
The number of autogenous vaccines prepared shows a great increase over the previous year, namely 47 as against 26.
Anti-rabic vaccine was prepared for use in the Colony as usual. The method of preparation of the vaccine which had been in use for some years was revised and the method used in Ceylon, Malaya, India, etc. substituted in its place. The prepared vaccine consists of a 1% dilution of brain and cord substance in 0.5% carbolic saline. The dosage for the average adult case is 5 c.c. daily subcutaneously for 14 doses. The necessary fixed virus is maintained by regular passage through rabbits at fortnightly intervals.
One hundred and sixty one courses of treatment were in- stituted, but of this total only fifty-four completed the prescribed course. Actually one thousand five hundred and seventy doses were issued.
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