M 144
Table VII gives the results of examinations of blood films for malaria made from prisoners admitted to Victoria Gaol, arranged in districts according to addresses supplied. The parasites are not classified, as in the great majority of positive findings, the diagnosis could only be made from the thick films supplied, and could not be established from the thin films owing to the scantiness of the infections. The films were obtained through the co-operation of the M.O. Gaol and his staff, and were stained in the Laboratory of the Bureau,
Records obtained from the R.A.M.C. authorities regarding incidence of malarial infection amongst the troops, British and Indian, are as follows:-(relapses not being taken into account) British Troops, number of cases of malaria contracted during the year was 113, of which 5 occurred in first quarter, 4 in second, 20 in third and 84 in fourth quarter. Calculated on an average strength of 2350, the admission rate for the year for fresh cases was 48.9 per 1000. Amongst the Indian troops there were 9 fresh infections, of which there were 2 in the first quarter, 4 in the second, none in the third, and 3 in the fourth quarter. These work out for the year as 7.2 per 1000 on an average strength of 1250.
Statistics for 1933 obtained from the M.O.H. show that 511 deaths were ascribed to Malaria in the Colony and the New Territories, these being 2.6% of the total deaths. The death rate per thousand for malaria is given as 0.55.
Dengue.
According to returns received, 9 cases were admitted to Government Hospitals in 1933. No specimens of Aedes aegypti were met with, but Aedes albopictus were frequently encountered.
Filaria.
No cases of disease due to filarial infection were reported from the Government Hospitals during the year. Mosquitoes obtained from various sources were dissected and examined for larval filaria. As a rule, these infections were only met with in warmer months of the year. In the Wong Chok Hang dissections one A. minimus was found infected with both malarial and filarial parasites. In the previous year seven. In the Shing Mun dissections 7 A. minimus and 15 A. jeyporiensis had double infections. During the year proboscis infections were encountered in A. hyrcanus, A. minimus, A. jeyporiensis, and C. fatigans. No proboscis infections had been found in 1932. On 6 occasions in the Anophelines, filaria were met with in the proboscis. On 16 occasions they were found in the head, on 4 in the neck, on 103 in the thorax, on 27 in the abdominal cavity and on one occasion in the femur. No infections were found in the malpighian tubes of either the Anophelines or C. fatigans.
M 144
Table VII gives the results of examinations of blood films for malaria made from prisoners admitted to Victoria Gaol, arranged in districts according to addresses supplied. The parasites are not classified, as in the great majority of positive findings, the diagnosis could only be made from the thick films supplied, and could not be established from the thin films owing to the scanti- ness of the infections. The films were obtained through the co- operation of the M.O. Gaol and his staff, and were stained in the Laboratory of the Bureau,
Records obtained from the R. A. M. C. authorities regarding incidence of malarial infection amongst the troops, British and Indian, are as follows:-(relapses not being taken into account) British Troops, number of cases of malaria contracted during the year was 113, of which 5 occurred in first quarter, 4 in second, 20 in third and 84 in fourth quarter. Calculated on an average strength of 2350, the admission rate for the year for fresh cases was 48.9 per 1000. Amongst the Indian troops there were 9 fresh infections, of which there were 2 in the first quarter, 4 in the second, none in the third, and 3 in the fourth quarter. These work out for the year as 7.2 per 1000 on an average strength of 1250.
Statistics for 1933 obtained from the M. O. H. show that 511 deaths were ascribed to Malaria in the Colony and the New Territories, these being 2.6% of the total deaths. The death rate per thousand for malaria is given as 0.55.
Dengue.
According to returns received, 9 cases were admitted to Government Hospitals in 1933. No specimens of Aedes aegypti were met with, but Aedes albopictus were frequently encountered.
Filaria.
No cases of disease due to filarial infection were reported from the Government Hospitals during the year. Mosquitoes obtained from various sources were dissected and examined for larval filaria. As a rule, these infections were only met with in warmer months of the year. In the Wong Chok Hang dissections one A. minimus was found infected with both malarial and filarial parasites. In the previous year seven. In the Shing Mun dissections 7 A. minimus and 15 A. jeyporiensis had double in- fections. During the year proboscis infections were encountered in A. byrcanus, A. minimus, A. jeyporiensis, and C. fatigans. No proboscis infections had been found in 1932. On 6 occasions in the Anophelines, filaria were met with in the proboscis. On 16. occasions they were found in the head, on 4 in the neck, on 103 in the thorax, on 27 in the abdominal cavity and on one occasion in the femur. No infections were found in the mal- phigian tubes of either the Anophelines or C. fatigans.
No comments yet.
Private notes are available after approval.