M 182
The Shing Mun Area.
64. Catching was done daily by three coolies who searched each line from end to end. The results of the catches were brought to the Bureau for identification and dissection. From time to time checking was done by the staff of the Bureau. The catches are indicated in Table XI.
65. Of the important carriers A. minimus and A. jeyporiensis, 1,273 and 2,774 were taken in 347 morning catches as compared with 4,644 and 25,317 in 239 catches done in 1933 when there was a much smaller labour force.
66. The records for dissection for malaria are given in table XII. The infection rates of A. minimus, A. jeyporiensis, A. maculatus, A. hyrcanus were respectively 3.28%, 2.34%, 0.85%, 0.40%.
67. Several morning catches were made in the village of Wo Li Hop lying half a mile to the north of Shing Mun Camp and 386 anophelines captured. The great majority were obtained in cow byres and pig sties. Of the 94 A. minimus, 79 A. jeyporiensis, 169 A. maculatus and 45 A. hyrcanus caught, 78 minimus, 50 jeyporiensis, 157 maculatus and 34 hyrcanus were obtained from the animal houses. No infections were found in 86 A. minimus, 85 A. maculatus, 39 A. hyrcanus dissected but 3 (4.35%) infections were found in 69 A. jeyporiensis.
68. Catching was done at Needle Hill matsheds where some 150 coolies were housed. These matsheds were situated on the left bank of the Shing Mun opposite the dam. In 269 morning catches only 398 anophelines were obtained. Of the 92 A. minimus dissected 3 or 3.26% were infected, of 80 A. jeyporiensis 1 or 1.25% were infected. No infections were found in 44 A. maculatus, 165 A. hyrcanus and 1 A. splendidus.
69. Catches were made in the village of Sheung Kwai Chung which lies at the head of valley A.4 half a mile to the west of Shing Mun Camp. Labourers employed at the camp reside in this village. Twelve morning catches were done and 432 anophelines captured. Out of 250 A. minimus, 92 A. jeyporiensis, 48 A. maculatus, 42 A. hyrcanus taken, 196 A. minimus, 84 A. jeyporiensis, 47 A. maculatus and 41 A. hyrcanus were captured in animal shelters. In 100 A. minimus dissected 2 were found infected and both had been caught in animal houses.
Chai Wan.
70. This is a village situated beside Chai Wan Bay. Pigs are kept by the villagers but no cattle. A catch was done one morning in September in the pigsties, 98 A. minimus were