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 West Ham]
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HEAT-TREATED MILK
Particulars are given below regarding the various types of heat-treated milk which were sampled during the year and submitted to the appropriate tests:—
Type of Milk | Number Sampled | Results of Examination | ||
---|---|---|---|---|
Number Satisfactory | Unsatisfactory | |||
Failed Methylene Blue Test | Failed Phosphatase Test | |||
Pasteurised | 78 | 76 | 2* | - |
Pasteurised (From Schools) | 46 | 46 | — | — |
Tuberculin Tested (Pasteurised) | 64 | 61 | 2* | . 1* |
Heat-Treated | 142 | 142 | — | — |
Sterilised | 118 | 118 | — | — |
Totals | 448 | 443 | 4 | 1 |
*Letters of caution sent |
EXAMINATION OF MILK FOR TUBERCULE
(GUINEA PIG TEST)
During the year 46 samples of milk were taken from
various sources, as shewn below, and were examined for the
presence of the tubercle bacillus. One sample proved positive,
and the infected animal was traced and slaughtered under the
Tuberculosis Order of 1938.
BIOLOGICAL TESTS
Type of Milk | Number Examined | Result | |
---|---|---|---|
Positive | Negative | ||
(From Purveyors) | 19 | — | 19 |
2 | — | 2 | |
3 | — | 3 | |
6 | — | 6 | |
15 | 15 | ||
1 | 1 | — | |
Totals | 46 | 1 | 45 |