H.—3l

10

Diphtheria in New Zealand, 1918-22.

Enteric Fever. The position as regards this disease for the period 191.8 22 is shown in the table below :—

Enteric Fever in New Zealand, 1918-22.

The outbreak of enteric fever at Mount Albert, Auckland, was responsible for a considerable proportion of the 539 notifications, and also for some 30 of the deaths attributed to this disease. A full account of this epidemic, contributed by the Acting Medical Officer of Health, Auckland, is presented as an appendix to this report. Tuberculosis. The notifications for 1922 show a slight decline in comparison with the preceding year, the figures being respectively 1,129 and 1,207. The next table, based upon the death returns, gives a truer idea of the variations in the prevalence of this disease during the period 1913-22. Tuberculosis in New Zealand, 1913-22. Death-rate from ,-, , t Number of Deaths Tuberculosis m/ f oou ™g e °* Year - • from Tuberculosis. per 10,000 of Total Deaths from Mean Population. all GaUses - -1913 .. .. .. .. .. 812 7-60 8-02 1914 :. .. .. .. ..728 6-67 7-17 1915... .. .. .. .. 693 6-30 6-95 ' 1916 .. .. .. .. ..742 6-74 7-00 1917 .. .. .. .. ..755 6.87 7-17 1918 .. .. .. .. ..832 7-54 5-08 1919 .. .. .. .. ..762 6-71 7-05 1920 .. .. .. .. ..851 7.21 7-03 1921 .. .. .. .. ..793 6-48 7-42 1922 .. .. .. 821 6-56 7-48 The position disclosed by the table is on the whole a satisfactory one. It will be seen that the death-rate from tuberculosis for the year was exceptionally low. Of the total of 821 deaths in 1922, 626 were assigned to pulmonary tuberculosis, and the remaining 195 to other forms of tuberculosis.

Year. Notifications. Number Rate P® r 10 ' 000 of Mean Population. Number. 189 157 95 107 78 Rate per .10,000 of Mean Population. 1-71 1-37 0-81 0-87 0-62 Deaths.* 918 .919 .920 921 .922 5,539 50-22 3.499 30-61 2,442 20-48 2,611 21-33 1,989 15-89 * Figures include deaths from croup.

Notifications. Dei iths. Year. Number. Rate per 10,000 of Mean Population. Rate per 10,000 of Mean Population, Number. 918 .919 920 921 .922 423 477 389 451 539 3-83 4-17 3-26 3-68 4-31 33 34 40 21 67 0-30 0-30 0-34 0-19 0-54