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 1938

[Report of the Medical Officer of Health for Croydon]

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'226

Table: TableXIII.

TableXIII.

TUBERCULIN TESTED (Licences granted under the Milk (Special Designations) Order, 1936).Present.Absent.Present in 1/100 m.l.Absent.Present.Absent.Present.Absent.Exceeding a trace.Not exceeding a trace.Satisfied test.
Tubercle bacillus5
Bacillus Coli ......5
Blood .........5
Pus ............5
Detritus .........5
Methylene Blue Test ...5
5555...55

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The above 5 Tuberculin Tested milk samples contained total
bacteria per m.l. as follows : —
Under 5,000 ... 5
Under the Regulations Tuberculin Tested Milk shall satisfy
a methylene blue reduction test and contain no coliform bacillus
in one hundredth of a millilitre.

Table: Table XIV.

Table XIV.

ACCREDITED MILK (Licences granted under the Milk (Special Designations) Order, 1936).Present.Absent.Present in 1/100 m.l.Absent.Present.Absent.Present.Absent.Exceeding a trace.Not exceeding a trace.i Satisfied.Not satisfied.
Tubercle bacillust220
Bacillus Coli ......110
Blood .........38
Pus ...............11
Detritus .........11
Methylene Blue Test ...101
2*20i10381111101

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*This figure includes 11 samples examined tor piesente ui iuuuu,
' tTwo °samples from a local Accredited Producer's farm proved to be
tuberculous. After systematic sampling of the herd a cow was
found to be giving tuberculous milk and was slaughtered under e
Tuberculosis Order.