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VI.
Local mosquito surveys for the abatement of mosquito nuisances and the supervision of anti-mosquito measures affecting Mount Kellet, Pokfulam and Shek O.
VII.
Anti-malaria measures at Shing Mun Dam. Investigation and prevention.
VIII.
The teaching of mosquitology and the instruction of inspectors in their work and other matters bearing on the subject.
IX.
Co-operation with Government Departments, the Military, Naval and Air Forces, public companies and private bodies in the investigation and eradication of Malaria.
I—MALARIA AND MOSQUITO BORNE DISEASES.
Malaria.
4. Statistics for 1935 show that 400 deaths were ascribed to malaria in the Colony and the New Territories, this being 1.8% of the total deaths. The death rate per thousand for malaria is given as 0.41.
5. The bulk of the malaria appears to be caused by mosquitoes breeding in hilly country—(a) in fallow rice fields, (b) in rice cultivation in October and November, (c) in the flattish portions of certain hill streams, and (d) in irrigation ditches.
6. In the areas where the masses of the population reside, extensive training of hill streams has been carried out, and in consequence, as a rule, there are no facilities for the breeding of Anophelines but where such exist as in suburban and rural areas on the Island and Mainland, the possibility of malaria must always be reckoned with.
7. Certain hill streams seem to occasion little if any malaria, such as those crossing Island Road from its junction with Sassoon Road to Pokfulam village, the streams which flow from the Peak Hotel to Pokfulam Reservoir, from the War Memorial Hospital to the sea, and from Aberdeen Reservoir to the sea.
8. As malaria is not a notifiable disease, rates cannot be given for the general population.