146. During 1935 investigations and anti-mosquito measures continued unabated. The staff engaged in this work consisted of two anti-malarial inspectors and ten coolies, the whole under the supervision of the Resident Medical Officer. From the 25th of September onwards, owing to the number of cases of malaria, an additional Chinese Medical Officer was appointed to look after the sick and thus allow the Resident Medical Officer to devote his whole attention to anti-malarial work.
147. The anti-malaria gang of 10 coolies oiled and kept clear the streams and did such ditching as was necessary.
148. Daily mosquito catching was done by three coolies of the labour force who searched each line from end to end with the aid of an electric torch. The resulting catch was brought to the Malaria Bureau for identification and dissection. From time to time, checking catches were done by the Staff of the Bureau. The catches are indicated in Table XI.
149. Of the important malaria carriers A. minimus and A. jeyporiensis, 1,278 and 2,774 were taken in 347 morning catches as compared with 4,644 and 25,317 in 239 morning catches done in 1933, when there was a much smaller labour force.
150. The majority of the A. maculatus were obtained from June onwards. A. hyrcanus was poorly represented in the June, July, August catches, but its yearly total much exceeded that of any other species. Like A. maculatus, it usually leaves buildings after feeding. Some specimens of both were, however, trapped by the mosquito gauze.
151. The records for dissections for malaria are given in Table XIII. The infection rates of A. minimus, A. jeyporiensis, A. maculatus, A. hyrcanus were 3.28%, 2.34%, 0.85%, 0.40%, respectively. In 1934 they were 2.97%, 3.58%, 1.11%, 0.27% and in 1933, 12.48%, 9.93%, 3.48%, 1.21%.
152. The results of dissections for filariae are given in Table XVI.
153. Amongst the Culicines captured, C. tritaeniorhynchus, C. sinensis, C. whitmorei figured largely.
154. The valley of the Shing Mun and its branches as far as the village of Ho Pui were kept under observation in order to ensure that the drainage of the fallow rice fields was functioning. Numerous surveys were done in the drainage ditches and streams. Only larvae of A. maculatus were encountered but not in great numbers. A. maculatus have
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146. During 1935 investigations and anti-mosquito measures continued unabated. The staff engaged in this work consisted of two anti-malarial inspectors and ten coolies the whole under the supervision of the Resident Medical Officer. From the 25th of September onwards owing to the number of cases of malaria an additional Chinese Medical Officer was appointed to look after the sick and thus allow the Resident Medical Officer to devote his whole attention to anti-malarial work.
147. The anti-malaria gang of 10 coolies oiled and kept clear the streams and did such ditching as was necessary.
148. Daily mosquito catching was done by three coolies of the labour force who searched each line from end to end with the aid of an electric torch. The resulting catch was brought to the Malaria Bureau for identification and dissection. From time to time checking catches were done by the Staff of the Bureau. The catches are indicated in Table XI.
149. Of the important malaria carriers A. minimus and A. jeyporiensis, 1,278 and 2,774 were taken in 347 morning catches as compared with 4,644 and 25,317 in 239 morning catches done in 1933, when there was a much smaller labour force.
150. The majority of the A. maculatus were obtained from June onwards. A. hyrcanus was poorly represented in the June, July, August catches, but its yearly total much exceeded that of any other species. Like A. maculatus, it usually leaves buildings after feeding. Some specimens of both were however trapped by the mosquito gauze.
151. The records for dissections for malaria are given in Table XIII. The infection rates of A. minimus, A. jeyporiensis, A. maculatus, A. hyrcanus were 3.28%, 2.34%, 0.85%, 0.40%, respectively. In 1984 they were 2.97%, 3.58%, 1.11%, 0.27% and in 1933, 12.48%, 9.93%, 3.48%, 1.21%.
152. The results of dissections for filariae are given in Table XVI.
153. Amongst the Culicines captured, C. tritaeniorhynchus, C. sinensis, C. whitmorei figured largely.
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154. The valley of the Shing Mun and its branches as far as the village of Ho Pui were kept under observation in order to ensure that the drainage of the fallow rice fields was functioning. Numerous surveys were done in the drainage ditches and streams. Only larvae of A. maculatus were encountered but not in great numbers. A. maculatus have
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