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
Ilford 1929
[Report of the Medical Officer of Health for Ilford]
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The following table shows the result of the analyses of the samples of "Grade A (Tuberculin Tested)" and "Grade A" milk:—
| "Grade A (Tuberculin Tested)." | "Grade A." | ||
|---|---|---|---|
| Sample No. | No. of Bacteria per c.c. | Sample No. | No. of Bacteria per c.c. |
| 151 | 14,100 | 144 | 7,733 |
| 154 | 9,303 | 156 | 1,810 |
| 163 | 67,700 | 165 | 3,836 |
| 180 | 3,900 | 178 | 47,500 |
| 188 | 2,633 | 205 | 20,800 |
| 190 | 5,100 | 209 | 7,936 |
| 206 | 51,466 | — | — |
| 213 | 24,133 | — | — |
| 219 | 89,000 | - | - |
The standard for "Grade A Milk Pasteurised" is that a sample
shall be found to contain (a) not more than 30,000 bacteria per
cubic centimetre; and (b) no coliform bacillus in one-tenth of a
cubic centimetre.
One sample of this grade of milk (No. 229) was taken, the
number of bacteria being 295.
The standard for “Pasteurised” milk is that a sample shall be
found to contain not more than 100,000 bacteria per cubic centimetre.
The following shows the result of the samples taken during the year:—
| Sample No. | No. of Bacteria per c.c. | Sample No. | No. of Bacteria per c.c. |
|---|---|---|---|
| 152 | 1,640 | 203 | 6,846 |
| 153 | 12,600 | 207 | 38,366 |
| 157 | 20,330 | 210 | 17,900 |
| 179 | 68,500 | 225 | 1,256 |
| 182 | 1,866 | 226 | 17,666 |
| 194 | 359,000 | 227 | 28.000 |
| 195 | 3,900 | 228 | 21,833 |