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9. As malaria is not a notifiable disease, incidence rates cannot be given for the general population.
10. Statistics for 1936 show that 503 deaths were ascribed to malaria in the Colony and New Territories, this being 19% of the total deaths. The death rate per thousand for malaria is given as 0.50.
11. No cases of blackwater fever were reported.
12. Table I shows hospital admissions for Malaria from the Police, including Water Police. Certain stations are situated in areas where malaria is unlikely to be contracted, others in rural areas where night patrol work adds to the risk of infection.
13. 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).
14. British Troops: the number of fresh cases during the year was 193, of which 2 occurred in the first quarter, 9 in the second, 55 in the third, and 127 in the fourth. In the first quarter 2 of the cases were amongst troops who had been in Camp, in the fourth quarter 41. Calculated on an average strength of 3730, the yearly admission rate was 51.74 per thousand.
15. Indian Troops: there were 12 fresh cases amongst these, of which there were none in the first quarter, 1 in the second, 5 in the third, and 6 in the fourth. The admissions work out for the year as 8.57 per thousand on an average strength of 1400.
Dengue.
16. According to returns received, 15 cases of Dengue were admitted to Government Hospitals during the year.
17. No larvae or adults of A. (S) aegypti were encountered, those of A. (S) albopictus were commonly met with.
Filaria.
18. Ten cases of disease ascribed to filarial infection were reported from Government Hospitals.
19. Larval filariae were encountered in dissections of A. hyrcanus, A. maculatus, A. minimus, A. jeyporiensis, and C. fatigans.
20. The following mosquitoes were experimentally infected with W. bancrofti at the Malaria Bureau in 1935: A. minimus, A. maculatus, A. hyrcanus, C. fatigans, and A. (F) togoi.