Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Hayes]
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SUMMARY OF REPORTS UPON THE BACTERIOLOGICAL EXAMINATION OF SAMPLES OF MILK.
Retort No. | Temperature on arrival | Bacteria per ml. or c.c. | Bacteria per 1/100 c.c. | Bacteria per 1/1,000 c.c. | Bacteria per 1/10,000 c.c. | B. coli. | Designation | Remarks | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2 Days | 3 Days | ||||||||||||
1/100 | 1/100 | 1/100 | 1/100 | 1/100 | 1/100 | ||||||||
1963 | 14°C. | 6,630 | — | N | N | N | N | N | N | Pasteurised | The centrifugalised deposit of this milk contains a few leucocytes and squames, but specially stained preparations made from the cream and c.d. fail to show any tubercle bacilli. The sample satisfied the prescribed test. | ||
1964 | 14°C. | 16,660 | N | N | N | N | N | N | Pasteurised | The centrifugalised deposit of this milk contains a slight excess of leucocytes, some squames and a trace of detritus, but specially stained preparations made from the cream and c.d. fail to show any tubercle bacilli. The sample satisfied the prescribed test. | |||
5075 | 13°C. | 73,500 | — | — | — | P | P | P | P | P | P N | Pasteurised | The centrifugalised deposit of this milk contains a slight excess of leucocytes, some epithelial squames and a trace of detritus, but tubercle bacilli are not detected in preparations made direct from the cream and c.d. The guinea-pig inoculated with this milk fails to show any signs of a tuberculous infection on post-mortem examination. The sample satisfied the prescribed test. |
11863 | 11°C. | 3,560 | — | — | N | N | N | N | N | Pasteurised | The centrifugalised deposit of this milk contains a few leucocytes and squames, together with a trace of detritus, but specially stained preparations made from the cream and c.d. fail to show any tubercle bacilli. The sample satisfied the prescribed test. | ||
11864 | 11°C. | 2,050 | — | — | — | N | N | N | N | N | N | Pasteurised | The centrifugalised deposit of this milk contains a few leucocytes and squames, but specially stained preparations made from the cream and c.d. fail to show any tubercle bacilli. The sample satisfied the prescribed test. |
11865 | 11°C. | 2,160 | — | — | — | N | N | N | N | N | N | Pasteurised | The centrifugalised deposit of this milk contains only a few leucocytes and some epithelial squames, but tubercle bacilli are not detected in specially stained preparations made from the cream and c.d. The sample satisfied the prescribed test. |
27204 | 17°C. | 7,500 | 55 | 7 | 1 | N | N (1/1000) | N (1/10000) | N | N (1/1000) | N (1/10000) | Raw | The centrifugalised deposit of this milk contains a slight excess of leucocytes and some squames, but specially stained preparations made from the cream and c.d. fail to show any tubercle bacilli. |
52526 | 12°C. | 3,700 | — | — | — | — | Pasteurised | The centrifugalised deposit of this milk is small in amount and contains a few leucocytes and squames, but specially stained preparations made from the cream and c.d. fail to show any tubercle bacilli. The sample satisfied the prescribed test. | |||||
52527 | 12°C. | 1,990 | — | - | — | — | Pasteurised | The centrifugalised deposit of this milk contains a marked excess of leucocytes and some squames, together with a fair number of long chains of streptococci possibly of the bovine mastitis type, but tubercle bacilli are not detected. The sample satisfied the prescribed test. |