London's Pulse: Medical Officer of Health reports 1848-1972

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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London

Walthamstow 1948

[Report of the Medical Officer of Health for Walthamstow]

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38
Licences were granted as follows :—
Vendors 22
Transfers 11
Refused 2
Withdrawn 3
Ice Cream (Heat Treatment, Etc.), Regulations, 1947/8.
The trade was again circularised regarding the provisions of
the above regulations.
Five traders found it impossible satisfactorily to comply with
the new regulations and now have their ice-cream manufactured
at approved factories.
Medical Examination—Typhoid, Etc., Carriers.
The voluntary scheme of attending for Blood Tests or Rectal
Swabs is still operative and 67 persons presented themselves for
tests during the year. No carrier was found.
Bacterial Quality and Grading of Ice Cream.
Sixty-one samples were submitted for bacteriological examination
and for grading in accordance with the Provisional Test of
the Ministry of Health.

Table: The following summary shows the comparative results of the old standard test and the new (provisional) test. Grade 1 and Grade 2 of the latter are considered satisfactory.

The following summary shows the comparative results of the old standard test and the new (provisional) test. Grade 1 and Grade 2 of the latter are considered satisfactory.

Plate CountOld Standard TestNot PassableNew (Provisional) Test Methylene Blue Test
Coliform Reaction (in 1/10 ml.)Bacterium coli (in 1/10 ml.)Very satisfactoryPassable
Reduction timeGrade
20,000——XNot in 4½ hours1
10,000——X„ 4½ „1
3,000* 3 tubes-X„ 4½ „1
2,000—-X„ 4½ „1
400——X„ 4½ „1
5,000—-X„ 4½ „1
7,000—-X„ 4½ „1
9,000——X„ 4½ „1
800—-X„ 4½ „1
6,000*3 tubes-X„ 4½ „1
300——X„ 4½ „1
3,700—-X„ 4½ „1
3,000—-X„ 4½ „1
400—-X„ 4½ „1
700—-X„ 4½ „1
11,000—-X„ 4½ „1
700——X„ 4½ „1
11,000—-XIn 4 „2
2,100*2 tubes—X„ 4 „2
2,200——X„ 4 „2
30,000—-X„ 4 „2