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 1937
[Report of the Medical Officer of Health for Croydon]
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95
Examinations Done Under National Health Insurance Act.
Table XVI.
| Nature of Examination. | Nature of Examination. | ||
|---|---|---|---|
| Pus for Gonococci | 10 (2 pos.) | Urine for Chemical Exam. | 10 |
| Pus for other organisms | 18 | Urine for Microscopal Exam | 10 |
| Pus for Tubercle B. | 15 | Urine for Tubercle B. | 10 |
| Blood for Wassermann | 23 (2 pos.) | Urine for Cultural Exam. | 10 |
| Complete Blood Counts | 9 | Other Examinations | 20 |
Bacteriological Examination of Milk.
Table XVII.
| Number of Samples submitted for Counts | 491 |
| Number under 10,000 per cc | 147 |
| Number over 10,000 but under 50,000 per cc | 178 |
| Over 50,000 but under 100,000 per cc | 53 |
| Over 100,000 but under 500,000 per cc | 71 |
| Over 500,000 but under 1,000,000 per cc | 22 |
| Over 1,000,000 per cc | 20 |
| Bacillus Coli Content (47 examined by this method)— | |
| Not found in 0.1 cc | 26 |
| ,, ,, 0.01 cc | 12 |
| ,, ,, 0.001 cc | 6 |
| Present in 0.001 cc | 3 |
| Higher dilutions not made. | |
| Tubercle Bacilli— | |
| Number of samples of milk submitted | 503 |
| Number found positive by inoculation test | 10 |
| The number of milk examinations increased by | 46 |
There are 31 samples still under investigation for Tubercle
Bacilli.
Milk Samples
47 samples examined for Bacillus Coli Content.
444 milk samples submitted to the Methylene Blue Test, of
which 35 failed to satisfy. Of these, 4 were further investigated
and found satisfactory to the Bacillus Coli test.