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(e) Co-operation with Government Departments, the Military, Naval and Air Forces, Public Companies and private individuals with regard to the investigation and eradication of malaria.
The teaching of mosquitology.
A full account of the activities of the Bureau will be found in the Appendix.
149. The information so far collected indicates that the principal agents in the spread of malaria are Anopheles Minimus and Anopheles Jeyporiensis which breed in small pools and collections of spring water subject to the influence of light and usually situated in areas which are hilly or undulating. Water in contact with newly opened earth in these regions is especially dangerous. Terraced and irrigated rice fields in the hills are dangerous at certain periods of the season.
150. Jungle bush and undergrowth in so far as they provide shade to pools and collections of spring water, hinder rather than promote the spread of malaria.
151. The Public Works Department carry out all anti-malaria works on Crown Lands other than oiling. Each year a sum is inserted for the 'training of nullahs' and each year work to the limit of the sum sanctioned is carried out. There can be no doubt that the disappearance of malaria from the populated areas is to a large measure due to the excellent drainage works carried out by this department.
152. The Public Works Department and the Malaria Bureau co-operated to the fullest extent.
153. At the Shing Mun Dam Construction Works, situated in one of the most malarious areas in the Colony, the engineering staff co-operated with that of the Medical Department in an attempt to control the malaria problem through anti-mosquito measures. The Medical Department undertook responsibility for investigation and research, for anti-larval measures other than drainage, for drug prophylaxis and for treatment. The engineering staff undertook to do clearing and drainage, the construction of buildings and general sanitary requirements.
A zone extending from the labour camp site for half a mile in every direction was cleared, drained and oiled. An attempt was made to render the labourers' camps mosquito-proof. Fuller description of these operations will be found in Chapter X and in the Report of the Malariologist, Appendix B.
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(e) Co-operation with Government Departments, the Mili- tary, Naval and Air Forces, Public Companies and private individuals with regard to the investigation and eradication of malaria.
The teaching of mosquitology.
A full account of the activities of the Bureau will be found in the Appendix.
149. The information so far collected indicates that the principal agents in the spread of malaria are Anopheles Minimus and Anopheles Jeyporiensis which breed in small pools and collec- tions of spring water subject to the influence of light and usually situated in areas which are hilly or undulating. Water in contact with newly opened earth in these regions is especially dangerous. Terraced and irrigated rice fields in the hills are dangerous at certain periods of the season.
150. Jungle bush and undergrowth in so far as they provide shade to pools and collections of spring water, hinder rather than promote the spread of malaria.
151. The Public Works Department carry out all anti-malaria works on Crown Lands other than oiling. Each year a sum is inserted for the 'training of nullahs' and each year work to the limit of the sum sanctioned is carried out. There can be no doubt that the disappearance of malaria from the populated areas is to a large measure due to the excellent drainage works carried out by this department.
152. The Public Works Department and the Malaria Bureau co-operated to the fullest extent.
153. At the Shing Mun Dam Construction Works, situated in one of the most malarious areas in the Colony, the engineering staff co-operated with that of the Medical Department in an attempt to control the malaria problem through anti-mosquito measures. The Medical Department undertook responsibility for investigation and research, for anti-larval measures other than drainage, for drug prophylaxis and for treatment. The engineer- ing staff undertook to do clearing and drainage, the construction of buildings and general sanitary requirements.
A zone extending from the labour camp site for half a mile in every direction was cleared, drained and oiled. An attempt was made to render the labourers' camps mosquito-proof. Fuller description of these operations will be found in Chapter X. and in the Report of the Malariologist, Appendix B.
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