M 143
to a hill stream where A. minimus has been found to breed, were 58 cases for the second half out of the 62 microscopically diagnosed cases for the whole year. For the female Gaol at Lai Chi Kok all the microscopically diagnosed cases, 29, occurred in the second half. Amongst Government servants (excluding coolies) out of 214 cases diagnosed as malaria, 158 occurred in the second half of the year.
The corresponding figures for 1930, 1931, 1932 show the same incidence. Judging from the Shing Mun and other figures, malaria appears to be most prevalent from May until the end of the year, being low in the first quarter, corresponding to the infection rate of the Anophelines carriers.
Malaria carrying mosquitoes have been found to breed in abandoned rice fields in hilly country throughout the year, and during the last quarter of the year in rice fields whilst the irrigation water is being drained off.
In areas where the masses of the population reside, extensive drainage of hill streams has been largely carried out and in consequence, as a rule, there are no facilities for breeding Anophelines, but where such exist, as in suburban and rural areas on the Island and Mainland, the occurrence of malaria can be reckoned on where the Anophelines flourish, as is borne out by investigations made in the past.
In Table III, figures are given regarding Hospital admissions supplied by Government Civil Hospital, Kowloon, Victoria, Victoria Gaol, Lai Chi Kok Gaol (male), Lai Chi Kok Gaol (female), Tung Wah, Tung Wah Eastern, Kwong Wah, Matilda, Alice Memorial, Ho Miu Ling, War Memorial, Yeung Wo Hospitals; and the relation to admissions for malaria. The malarial admissions are also arranged according to quarters of the year and to methods of diagnosis. As malaria is not a notifiable disease, rates cannot be given for the general population. Clinical diagnosis of malaria is not a satisfactory one. No cases of Blackwater fever were reported.
In Table IV statistics of cases treated, supplied by the following Dispensaries are shown:-Tai Po, Un Long, Western Public, Kowloon City, Sham Shui Po, Shaukiwan, Aberdeen, Central, Eastern, Yaumati, and Hung Hom.
Table V deals with Hospital admissions of Government servants (excluding coolies) in relation to admissions for malaria.
Table VI is a similar table for Police including Water Police. Certain stations are situated in areas where malaria is not likely to be contracted, others in rural areas where night patrol work adds to the risk of infection.
M 143
to a hill stream where A. minimus has been found to breed, were 58 cases for the second half out of the 62 microscopically diagnosed cases for the whole year. For the female Gaol at Lai Chi Kok all the microscopically diagnosed cases, 29, occurred in the second half. Amongst Government servants (excluding coolies) out of 214 cases diagnosed as malaria, 158 occurred in the second half of the year.
The corresponding figures for 1930, 1931, 1932 show the same incidence. Judging from the Shing Mun and other figures, malaria appears to be most prevalent from May until the end of the year, being low in the first quarter, corresponding to the infection rate of the Anophelines carriers.
Malaria carrying mosquitoes have been found to breed in abandoned rice fields in hilly country throughout the year, and during the last quarter of the year in rice fields whilst the irriga- tion water is being drained off.
In areas where the masses of the population reside, extensive drainage of hill streams has been largely carried out and in conse- quence, as a rule, there are no facilities for breeding Anophelines, but where such exist, as in suburban and rural areas on the Island and Mainland, the occurence of malaria can be reckoned on where the Anophelines flourish, as is borne out by investigations made in the past.
In Table III, figures are given regarding Hospital admissions supplied by Government Civil Hospital, Kowloon, Victoria, Victoria Gaol, Lai Chi Kok Gaol (male), Lai Chi Kok Gaol (female), Tung Wah, Tung Wah Eastern, Kwong Wah, Matilda, Alice Memorial, Ho Miu Ling, War Memorial, Yeung Wo Hospitals; and the relation to admissions for malaria. The malarial admissions are also arranged according to quarters of the year and to methods of diagnosis. As malaria is not a notifiable disease, rates cannot be given for the general population. Clinical diagnosis of malaria is not a satisfactory one. No cases of Black- water fever were reported.
In Table IV statistics of cases treated, supplied by the following Dispensaries are shown:-Tai Po, Un Long, Western Public, Kowloon City, Sham Shui Po, Shaukiwan, Aberdeen, Central, Eastern, Yaumati, and Hung Hom.
Table V deals with Hospital admissions of Government ser- vants (excluding coolies) in relation to admissions for malaria.
Table VI is a similar table for Police including Water Police. Certain stations are situated in areas where malaria is not likely to be contracted, others in rural areas where night patrol work adds to the risk of infection.
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