H.—3l.

SECTION 2,—THE COMMON INFECTIOUS DISEASES. Influenza (all Forms), 221. Number of Deaths from Influenza in New Zealand, 1927-31. Year. Number. ! Year. Number 1927 .. .. .. ..131 1930 .. .. ..131 1928 .. .. .. ..242 1931 .. .. ..221 1929 .. .. .. .. 297 Pneumonic Influenza. Pneumonic influenza, the deaths from which are included in " Influenza (all forms)," is a form of influenza which is compulsorily notifiable.

Pneumonic Influenza in New Zealand, 1927-31.

Diphtheria, 55. Diphtheria in New Zealand, 1927-31.

Scarlet Fever, 11. The course of scarlet fever in New Zealand is briefly shown in the table below :—

Scarlet Fever in New Zealand, 1927-31.

We have experienced an epidemic period of more than two years duration, but the death-rate was low in comparison with that of former epidemics. Whooping-cough, 36 ; Measles, Nil. Neither of these two diseases is compulsorily notifiable. Whooping-cough was prevalent, but the number of deaths caused thereby was low in comparison with former epidemics.

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Deaths. Year. I | Number Eate P er 10,000 of iNumoer. Mean p opulation 1927 .. .. 43 0-31 1928 .. .. 100 0-72 1929 .. .. 120 0-85 1930 .. .. 66 0-46 1931 .. .. 121 0-84

. I , ; " Notifications. Deaths.* Year. j — ;—_ , Number Rate P er 10 ' 000 Number Rate per 10,000 of Mean Population. ' of Mean Population. 1927 .. .. .. 1,446 10-52 58 0-42 1928 .. .. .. 1,600 11-51 72 0-52 1929 .. .. .. 1,687 11-99 92 0-65 1930 .. .. .. 1,440 10-10 58 0-41 1931 .. .. .. 1.327 9-18 55 0-38 * Figures include deaths from croup.

Notifications. Deaths. Year. ■ Number Rate P er 10 - 000 Number Rate P er 10 > 000 J umber. of Mean Population. Number. of Mean Population. 1927 .. .. .. 2,185 15-89 16 0-12 1928 .. .. .. 6,127 44-06 55 0-40 1929 .. .: .. 4,848 34-46 27 0-19 1930 .. .. .. 2,244 15-75 16 0-11 1931 .. .. .. 1,304 9-02 11 0-08