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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Examinations Done Under National Health Insurance Act.
Nature of Examination Nature of anamination
Pus for Gonococci 15(4 pos.) Urine for Chemical Exam 2
Pus for other organisms 6 Urine for Microscopal Exam. 2
Pus for Tubercle B 14.(1 pos.) Urine for Tubercle B. 2
Blood for Wassermann 8(1 pos.) Urine for Cultural Exam 2
Complete Blood Counts 10 Other Examinations 8
Bacteriological Examination of Milk.
Number of Samples submitted for Counts 389
Number under 10,000 per cc 136
Number over 10,000 but under 50,000 per cc 141
Over 50,000 but under 100,000 per cc 43
Over 100,000 but under 500,000 per cc 32
Over 500,000 but under 1,000,000 per cc 6
Over 1,000,000 per cc 31
Tubercle Bacilli
Number of samples of milk submitted 388
Number found positive by inoculation test 1
The number of milk examinations decreased by (78 for Bact.
77 for T.B.
Milk Samples
389 milk samples submitted to the Methylene Blue Test..
whic1h 55 failed to satisfy. Of these 114. were further investigated
and found satisfactory to the Bacillus Coli test.
33