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85
Other samples examined were:—
16 samples of Grade "A" Milk, bacteriologically, all of which
were satisfactory.
2 Breads.
4 Flours.
1 Pressed yeast.
5 Butters.
4 Limes.
4 Electrolytic Fluids.
3 Rag Flocks, 1 of which failed to reach the standard of
cleanliness.
ALBERT E. PARKES, F.I.C.,
Public Analyst.
Section VI.
PREVALENCE OF, AND CONTROL OVER, INFECTIOUS
AND OTHER DISEASES.
INFECTIOUS DISEASE.
Notifications .
3,907 cases of Infectious Disease (Smallpox 628) were notified during
the year. In addition there were 99 other cases notified as Infectious
Diseases in which the diagnosis was not confirmed.
The notification rate was 24.4, compared with 21.5 in 1929, 16.1 in
1928, 11.3 in 1927, 13.8 in 1926, 10.1 in 1925, 9.8 in 1924, 9.2 in 1923,
and 6.6 in 1922. The increase in the notification rate was due almost
entirely to the prevalence of Smallpox. The number of Chickenpox
cases was greater than in 1929.
The incidence of the commoner infectious diseases, Diphtheria and
Scarlet Fever, varied only slightly.
Infectious Diseases in Milkshops and Homeworkers' Premises.
One case of infectious disease (Diphtheria) occurred in a family
engaged in the sale of milk. The sale of milk was stopped for a period
of 7 days and the family contacts of the patient were swabbed, with
negative results.
The case of a dairyman who was found to be Tuberculous and gave
up his business is referred to in the Tuberculosis Section, page 116.
Three contacts of infectious disease patients (1 Smallpox, 1 Diphtheria
and 1 Scarlet Fever) employed in the milk trade were dealt with during
the year.