AnnualReport-1921 — Page 310

M 45

Monthly prevalence of Small-pox 1912 to 1921.

Month

1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 January 163 26 2 358 February 254 23 3 34 176 March 156 27 11 63 38 13 April 96 18 18 May 23 10 19 June 3 July August September October November December 68 328 Total 709 111 110 34 712 595 32 27

Influenza.

Hongkong in common with the rest of the world has suffered from the pandemic of Influenza during recent years.

In the years 1916 and 1917 only one death from this disease was recorded each year. The disease appears to have become epidemic towards the middle of 1918.

The disease is not notifiable and so its prevalence can only be judged from the number of deaths due to it.

The following table shows the deaths registered as due to Influenza during the years 1918 to 1921 inclusive.

Month 1918 1919 1920 1921 January 21 39 20 February 0 16 118 19 March 0 25 75 20 April 0 41 38 22 May 1 75 32 27 June 108 137 61 26 July 53 77 22 54 August 10 30 14 30 September 1 30 28 October 70 44 13 November 95 35 27 December 67 34 17 Total 405 449 542 303