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
Southwark 1967
[Report of the Medical Officer of Health for Southwark, Borough of]
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| Country of origin | Type | No. of samples taken | Viable counts at 37°C. | ||
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| Less than 100,000 | 100,000-1,000,000 | More than 1,000,000 | |||
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Consignments of cooked shellfish showing viable counts in excess of 1,000,000 were detained.
Where a consignment showed a viable count of between 100,000 and 1,000,000 the importer was
warned that the shellfish should be used immediately after defrosting.
No salmonellae or other pathogenic organisms were found in any of the samples examined.