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
Croydon 1939
[Report of the Medical Officer of Health for Croydon]
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-5 Samples from a local Accredited Producer's farm proved to be tuberculous
After systematic sampling of the herd two cows were found to be giving
tuberculous milk and were slaughtered under the Tuberculosis order.
The following tables summarise the results of the bacteriological examinations of Pasteurised Milk Samples during the £ear:-
PASTEURISED MILK (Licences granted under, the milk (Special Designations) Order
| Present | Absent | Over 100,000 per m.l. | Under 100,00C per m.l. | Present | Absent | Present | Absent | Present | Absent | |
|---|---|---|---|---|---|---|---|---|---|---|
| Tubercle bacillus | 162 | 1 | ||||||||
| Total number of bacteria | 6 | 156 | ||||||||
| Blood | 162 | |||||||||
| Pus | 162 | |||||||||
| Detritus | 162 | |||||||||
| 162 | 6 | 156 | 162 | 162 | 162 |
The above 162 Pasteurised Milk samples contained bacteria per m.l. as follows:-
| Under 1,000 | 6 |
| 1,000 - 5,000 | 36 |
| 5,000 - 10,000 | 30 |
| 10,000 - 20,000 | 41 |
| 20,000 - 30,000 | 18 |
| 30,000 - 50,000 | 13 |
| 50,000 - .100,000 | 12 |
| Over 100,000 | 6 |
| 162 |
Under the Regulations Pasteurised Milk must not contain more than
100,000 bacteria per millilitre.
PROVISION AS TO MILK SUPPLY.
During the year 259 samples of ordinary milk were procured and submitted
to -examination far tuberculosis in accordance with the Milk and Dairies
(Consolidation Act, 1915.
Those samples were taken as follows
Samples taken at cowsheds in the Borough 14
Samples in course of delivery from
country cowsheds to local
dairymen and purveyors of
milk in the Borough 20
Samples taken at dairymen's premises
in the Borough 146
Samples taken in course of delivery
by local dairymen or milk
sellers on their rounds in different
parts of the Borough. 79
-84- 259