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 1933
[Report of the Medical Officer of Health for Walthamstow]
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31
of purveyors of milk during the year and a general improvement
in the standard of cleanliness was observed.
During the year 24 samples of milk were taken for bacteriological
count and of these 3 were biologically tested for
the presence of the tubercle bacillus with negative results.
The samples taken are summarised below.
| Grade of Milk. | No. of Samples. | No. tested for T.B. |
|---|---|---|
| Grade A (T.T.) | 3 | — |
| Grade A (Pasteurised) | 1 | — |
| Grade A | 1 | 1 |
| Pasteurised | 15 | — |
| Raw | 4 | 2 |
| Total | 24 | 3 |
The following table gives the results of the analyses:—
BACTERIOLOGICAL ANALYSIS OF MILK SAMPLES.
| Date. | Grade of Milk. | Total Bacteria per c.c. | Bacillus Coli absent in. | Presence of Tubercle Bacillus (biological test). | Remarks. |
|---|---|---|---|---|---|
| 9.2.33 | Pasteurised | 12,000 | 1 c.c. | No test | Satisfactory. |
| 13.2.33 | Raw | 56,000 | 0.001 c.c. | ||
| 25.4.33 | „ | 32,000 | 1 c.c. | Absent | |
| 23.5.33 | Pasteurised | 320,000 | 0.001 c.c. | No test | Unsatisfactory. |
| 30.5.33 | 16,000 | 0.001 c.c. | Satisfactory. | ||
| 7,800 | 0.1 c.c. | ||||
| 9.6.33 | 57,000 | 1 c.c. | |||
| 28.6.33 | Grade A (T.T.) | 14,000 | 0.01 c.c. | ||
| „ | Pasteurised | 39,000 | 0.01 c.c. | ||
| 31,000 | 0.01 c.c. | ||||
| Raw | 64,000 | 0.001 c.c. | |||
| 19.7.33 | Pasteurised | 37,000 | 1 c.c. | ||
| 320,000 | 1 c.c. | Unsatisfactory. | |||
| 2.8.33 | 73,000 | 1 c.c. | Satisfactory. | ||
| 176,000 | 0.0001 c.c. | Unsatisfactory. | |||
| 4.8.33 | Raw | 960,000 | 0.00001 c.c. | Absent | |
| 24.8.33 | Grade A. | 156,000 | 0.001 c.c. | ||
| 25.8.33 | Grade A (T.T.) | 12,000 | 0.01 c.c. | No test | (Coli Count). Satisfactory. |
| Grade A. Pastd. | 3,300 | 0.1 c.c. | |||
| Pasteurised | 68,000 | 0.1 c.c. | |||
| 9,100 | 1 c.c. | ||||
| 26.9.33 | Grade A (T.T.) | 9,200 | 0.01 c.c. | Absent | |
| Pasteurised | 15,600 | 1 c.c. | No test | ||
| 4,600 | 1 c.c. |