London's Pulse: Medical Officer of Health reports 1848-1972

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Holborn 1930

[Report of the Medical Officer of Health for Holborn Borough]

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45
from the register the name of the retail seller. Subsequently the wholesale
business was transferred to other premises and arrangements for the sale of milk
by retail being satisfactorily improved the registration for retail sale was again
effected.
In another case application was received for registration of premises as a dairy
to be used for the storage of fresh cream. The premises were found to be
unsuitable for use as a dairy and the application was withdrawn.
Itinerant Milk Vendors.
In connection with the sale of milk in the Borough by itinerant vendors, it
is our practice, when such milk sellers are not registered by the Council, to
communicate with the Medical Officer of Health of the district in which the
vendor states he is registered, or in which is situated the address appearing on
the barrow, in order to obtain confirmation of registration and ascertain whether
tha premises of the milk seller, where the milk is stored, utensils cleansed, etc.,
are in a satisfactory state.
Residue from Milk Clarifiers.
As it would seem probable that pigs have been infected with tuberculosis as
a result of feeding with infected milk and slime from clarifiers, enquiry was made
at the various establishments in the Borough where milk is cleansed by clarifiers
to ascertain what is done with the residue after the milk has been passed through
the cleansers. It was found in one case that this residue is at once destroyed by
burning in a furnace used in connection with a pasteurising plant, in all other cases
it is at once washed down the drains.
Bacteriological Examination of Milk.
Twenty-four samples of milk were examined for the presence of tubercle bacilli; six
of these were also examined to ascertain the number of organisms per cubic centimetre
and the smallest volume containing B. coli.
Examinations for tubercle bacilli were carried out by animal inoculation ; five of
the samples examined were found to contain tubercle bacilli.

Cleanliness of Milk Examined.

Date sample taken.Nature of Shop where purchased.No. of Organisms per cc. grown at 37° C for 24 hours.Minimal volume containing Bacillus Coli.
1 930 Dec. 8Milksliop (large trade)185,0000.01 cc.
Nor. 10Milkshop (do )75,0000.01 cc.
Dec. 8Milkshop (do.)50,0000.1 cc.
Oct 20Small general shop41,0000.001 cc.
Nov. 3Milkshop (large trade)27,0001 cc.
Oct. 20Milkshop (do.)13,0000.01 cc.