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 1932
[Report of the Medical Officer of Health for Walthamstow]
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| Date. | Grade of Milk. | Total Bacteria per c.c. | Bacillus Coli absent in. | Presence of Tubercle Bacillus (biological test). | Remarks. |
|---|---|---|---|---|---|
| 7.7.32 | Pasteurised | 38,000 | Not stated | No test | Satisfactory, |
| „ | 36,000 | „ „ | , , | „ | |
| 12.7.32 | Grade A (T.T.) | 11,000 | 0.01 c.c. | Absent | „ |
| „ | „ | 67,000 | 0.001' c.c. | „ | Unsatisfactory (Bacillus Coli) |
| Pasteurised | 28,000 | Not stated | No test | Satisfactory. | |
| 24.8.32 | Grade A (T.T.) | 4,000 | * * | Absent | „ |
| „ | Raw | 42,000 | „ | No test | „ |
| 1.9.32 | Pasteurised | 20,000 | 0.1 c.c. | „ | „ |
| „ | „ | 12,000 | 0.001 c.c. | „ | „ |
| „ | „ | 19,000 | 0.001 c.c. | „ | „ |
| „ | „ | 256,000 | 0.0001 c.c. | „ | Unsatisfactory |
| „ | Grade A Pasteurised | 15,000 | 0.01 c.c. | „ | (Bacillus Coli) |
| 8.12.32 | Raw | 9,600 | 0.1 c.c. | „ | Satisfactory. |
In addition, 7 samples of cream were analysed and the results
are given below:—
BACTERIOLOGICAL ANALYSTS OF CREAM SAMPLES.
| Date. | Total Bacteria per c.c. | Bacillus Coli absent in | Presence of Tubercle Bacillus (biological test). | Remarks. |
|---|---|---|---|---|
| 29.11.32 | 9,800,000 | 0.01 c.c. | Absent | Clean product but bacteria count should be lower. |
| „ | 96,000 | 0.01 c.c | „ | Clean product and of a high standard. |
| „ | 1,700,000 | 1 c.c. | „ | Clean product—satisfactory. |
| „ | 184,000 | 1 c.c. | „ | Clean product and of a high standard. |
| 1.12.32 | 15,000 | 0.1 c.c | „ | Clean product—satisfactory bacterial purity. |
| „ | 48,000 | 0.1 c.c, | „ | „ |
| „ | 7,000 | 1 c.c. | „ | „ |
In the absence of any standard no exception could be taken to
the first sample, especially in view of the fact that a qualitative
bacteriological analysis showed the absence of pathogenic microorganisms.
The producer was, however, seen and asked for an
explanation which was that this sample was from a quantity which
had inadvertently not been pasteurised.