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 Enfield]
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TABLE 8
PREVALENCE AND CONTROL OF INFECHOUS DISEASE Public Health Laboratory Service Clinical and Environmental Specimens — Findings
Type of Specimen | Number of Specimens Submitted | Findings | Number of Positives | *% of Positives | ||
---|---|---|---|---|---|---|
By Local Authority | By General Practitioners | Total | ||||
Nose and throat swabs | 8 | 898 | 906 | Group A haemolytic streptococci | 70 | 8.00 |
Faeces, general | 857 | 3,854 | 4,711 | Shigella sonnei | 510 | 11.00 |
Salmonella | 93 | 2.00 | ||||
Infantile gastro-enteritis coli | 26 | 0.50 | ||||
Giardiasis | 46 | 1.00 | ||||
Helminths | 15 | 0.30 | ||||
Faeces, occult blood | — | 326 | 326 | Blood . | 49 | 15.00 |
Kahn tests | 73 | 31 | 104 | Gonorrhoea | — | — |
Milk | 259 | — | 259 | Failed Methylene Blue Test | 8 | 3.00 |
Water | 78 | — | 78 | Faecal coli found | 11 | 14.00 |
Food | 84 | 84 | Pathogenic organisms found | — | — | |
Ice-Cream | 55 | 55 | Failed Methylene Blue Test | 17 | 30.90 |
•These figures indicate positives of the total specimens sent including screening and follow-up.
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