AnnualReport-1925

M 60

If the year 1894 be excluded and the remaining years to the end of 1925 be divided into three periods of ten, ten and eleven years it appears that the incidence of plague during these periods was as follows:

First period

1895 to 1904,

9310 cases.

Second period

1905 to 1914,

7318 cases.

Third period

1915 to 1925,

2568 cases.

The population of the Colony continued to increase during all these years.

In 1895 the Chinese population was estimated at 237,670, in 1905 at 359,873, and in 1915 at 404,840, while in 1925 it was estimated at 770,420.

These figures are exclusive of the New Territory except New Kowloon.

The mean yearly populations for these periods are as follows:-

Period Mean yearly population (Chinese) 1895 to 1904 268,321 1905 to 1914 342,397 1915 to 1925 538,051

During the first period (10 years) the incidence of Plague was 34.72 per 1000 of the population; during the second period (10 years) such incidence was 21.37 per 1000, and during the third period (11 years) 4.75 per 1000 of the population.

This means that the incidence of Plague for the last period is only 13.68 per cent that of the first period or that such incidence decreased by 86.32 per cent.

Cholera.

During 1925 as in 1923 and 1924 the Colony was free from locally acquired Cholera. Two cases were notified during the year one being Chinese and one Non-Chinese. Both were imported.

The following tables shows the monthly incidence of Cholera in the Colony for the last ten years.

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