M 69
These results are in striking contrast to those obtained by workers in America, who have found a surprisingly high percentage of infestation in bodies examined by them.
(5) General. As usual the number of tests performed during the year constitutes a record, although the increase is not as great as has been the rule during past years.
For the first time since being in charge of the Institute the writer has rather discouraged any enlargement of the field of our activities. With much regret it has been realized that there is a limit to the amount of work of which a non-expanding staff is capable and which can be carried out in our present quarters. It is a pity that this should be so but there seems little help for it under present conditions.
The cholera epidemic in the summer threw a great deal of extra work on the staff, both by way of stool diagnosis as well as in preparing and distributing prophylactic vaccine. Later in the year the appearance of smallpox cases in increasing numbers led to great increase in our lymph production in order to cope with a possible epidemic in 1938.
It is again a pleasure to record the highly satisfactory work of the staff of the Institute.
A. PROTOZOOLOGY AND HELMINTHOLOGY.
(1) Blood films for malaria.-Eight thousand nine hundred and seventeen films were examined for the presence of malarial parasites. Three thousand five hundred and eighty-one contained parasites. This is in somewhat marked contrast to last year when there were four thousand and ninety-two positives in eight thousand four hundred and eighty-one films examined; i.e., in the year under review there were fewer positives in more films.
A graph is interleaved showing the percentage relation of the different types of malarial parasites to each other month by month throughout the year, also the rainfall in inches. It shows beautifully the interesting relation which quartan bears to sub-tertian, both in the early as well as the later months of the year. The rather smooth curve of simple tertian shows well how comparatively little this type of infection is influenced by atmospheric conditions. This must be related (in some measure at least) to the well-known tendency of simple tertian infection to chronicity and relapse.
M 69
These results are in striking contrast to those obtained by workers in America, who have found a surprisingly high per- centage of infestation in bodies examined by them.
(5) General. As usual the number of tests performed during the year constitutes a record, although the increase is not as great as has been the rule during past years.
For the first time since being in charge of the Institute the writer has rather discouraged any enlargement of the field of our activities. With much regret it has been realized that there is a limit to the amount of work of which a non-expanding staff is capable and which can be carried out in our present quarters. It is a pity that this should be so but there seems little help for it under present conditions.
The cholera epidemic in the summer threw a great deal of extra work on the staff, both by way of stool diagnosis as well as in preparing and distributing prophylactic vaccine. Later in the year the appearance of smallpox cases in increasing numbers led to great increase in our lymph production in order to cope with a possible epidemic in 1938.
It is again a pleasure to record the highly satisfactory work of the staff of the Institute.
A. PROTOZOOLOGY AND HELMINTHOLOGY.
+
(1) Blood films for malaria.-Eight thousand nine hundred and seventeen films were examined for the presence of malarial parasites. Three thousand five hundred and eighty one con- tained parasites. This is in somewhat marked contrast to last year when there were four thousand and ninety two positives in eight thousand four hundred and eighty-one films examined; i.e., in the year under review there were fewer positives in more films,
•
A graph is interleaved showing the percentage relation of the different types of malarial parasites to each other month by month throughout the year, also the rainfall in inches. It shows beautifully the interesting relation which quartan bears to sub-tertain, both in the early as well as the later months of the year. The rather smooth curve of simple tertian shows well how comparatively little this type of infection is influenced by atmospheric conditions. This must be related (in some measure at least) to the well known tendency of simple tertian infection to chronicity and relapse.
No comments yet.
Private notes are available after approval.