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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
Chigwell 1939
[Report of the Medical Officer of Health for Wanstead and Woodford]
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The samples of milk taken for bacteriological examination under the Milk (Special Designations) Order, 1936, show the following results:-
| No | Designations | Result of Examination | Remarks |
|---|---|---|---|
| 16 | Tuberculin Tested | Satisfied methylene blue reduction test. | Satisfactory |
| 17 | „ | „ | „ |
| 18 | „ „ | Did not satisfy test. | Unsatisfactory |
| 4 | Tuberculin Tested (Certified) | Satisfied methylene blue reduction test. | Satisfactory |
| 14 | „ | „ | „ |
| 3 | Tuberculin Tested (Pasteurised) | 160 bacteria per ml. | „ |
| 1 | Pasteurised | 9,000 „ „ „ | „ |
| 2 | „ | 7,200 „ „ „ | „ |
| 15 | „ | 14,000 „ „ „ | „ |
| 19 | „ | 2,700 „ „ „ | „ |
With regard to the unsatisfactory sample, No. 18, this matter
was subsequently taken up by the Essex County Council with the
producer of the milk.
Examination of Ordinary Milk-
The following table shows the results of nine samples of ordinary milk subjected to bacteriological examination and animal inoculation test for tubercle bacilli:-
| No | No. of Bacteria per 1 ml | Presence of Bacillus Coliform in 0.01 ml. | Presence of Tubercle Bacilli | Remarks. |
|---|---|---|---|---|
| 5 | 45,000 | Absent | Considered free | Satisfactory |
| 6 | 6,000 | Absent | Considered free | Satisfactory |
| 7 | 30,000 | Absent | Considered free | Satisfactory |
| 8 | 12,000 | Absent | Considered free | Satisfactory |
| 9 | 29,000 | Absent | Considered free | Satisfactory |
| 10 | 600,000 | Present | Considered free | Unsatisfactory |
| 11 | 500,000 | Present | Considered fr^e | Unsatisfactory |
| 12 | 260,000 | Present | Considered free | Unsatisfactory |
| 13 | 4,000 | Absent | Considered free | Satisfactory |
It will be observed from the above table that
tubercle bacilli was absent from all samples.
Particulars relating to the three unsatisfactory
samples showing excessive bacteria count, were forwarded to the
authorities concerned with the production of the milk, and the
co-operation of their Inspectors obtained with regard to adverse
conditions affecting the milk supply on the producer's premises.
(b) Food and Drugs (Adulteration) Act, 1928. and Food and
Drugs Act, 1938.
Twenty-one samples of milk were submitted far
analysis and the reports received on these samples from the
Public Analyst were in every case genuine.
Twelve samples of food procured under the Food &
Drugs Act, 1938 were also submitted for analysis, and were
reported upon by the Public Analyst as being genuine.
16.