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 Croydon]
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Other samples taken | 2 | |
302 |
Eleven samples proved to be tuberculous, but oi these four were
from supplies from which previous tuberculous samples had been
taken and which were at the time the subject of action by the
Authorities concerned, and therefore could be taken to be duplicate
samples. The milk came from farms in East Sussex, Surrey, and
a farm in the borough. The Authorities concerned were notified
that samples of milk taken had been shown to contain tubercle
bacilli and enquiries were made with a view of tracing the cows
involved. A considerable number of cows were examined by the
Authorities' Veterinary Officers, suspected animals isolated and
samples taken and as the result of their investigations five animals
were dealt with under the Tuberculosis Order, 1925. In two cases
it was ascertained that the milk was a mixed supply coming from a
considerable number of farms, and much difficulty is met with in
these cases in locating affected animals.
The following table summarises the results of the bacteriological examination of ordinary milk samples, taken under the Milk and Dairies (Consolidation) Act, 1915, from 1st January to 31st December, 1931:—
Table XXVIII.
ORDINARY MILK. | Present. | Absent. | Over 200,000 per c.c. | Under 200,000 per c.c. | Present in 1/100 c.c. | Absent from 1/100 c.c. | Present. | Absent. | Present. | Absent. | Exceeding a trace. | Not exceeding a trace. |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Tubercle bacillus | 11 | 291 | ||||||||||
Total No. of bacteria | 60 | 242 | ||||||||||
Bacillus Coli | 198 | 104 | ||||||||||
Blood | ... | 302 | ||||||||||
Pus | ... | 302 | ||||||||||
Detritus | ... | 302 | ||||||||||
11 | 291 | 60 | 242 | 198 | 104 | ... | 302 | ... 302 | ... | 302 |