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
Havering 1968
[Report of the Medical Officer of Health for Havering]
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BACTERIOLOGICAL MILK SAMPLING
A total of 230 milk samples were taken during the year and
submitted for bacteriological examination with results as follows:—
Pasteurised— 207 -201 passed the methylene blue
test, 6 failed.
All passed the phosphatase test
Sterilised— 10 -All satisfied the turbidity test
Ultra heat treated— 13 -All satisfied the U.H.T. test
Included in the above totals were 63 samples from vending
machines. 59 satisfied the methylene blue test and 4 failed. All
satisfied the phosphatase test.
The number of failures were comparatively few and were
mostly caused by the failure of the retailer to keep a proper
stock rotation.
Twenty-one samples of milk were also submitted to the
public analyst for chemical examination and all proved satisfactory.
Eight of these samples were also tested for the presence
of anti-biotics and all proved negative.
ICE CREAM SAMPLING—Bacteriological Examination
During the year 155 samples of ice cream were submitted
for bacteriological examination with results as shown:—
During the year 155 samples of ice cream were submitted for bacteriological examination with results as shown:—
| Mobile | Shops | Total | |||
|---|---|---|---|---|---|
| Grade | Soft | Other | Soft | Other | |
| 1(satisfactory) | 17 | 51 | 5 | 36 | 109 |
| 2(satisfactory) | 1 | 5 | 1 | 4 | 11 |
| 3(poor) | 5 | 10 | 1 | 5 | 21 |
| 4(unsatisfactory) | 6 | 1 | 4 | 3 | 14 |
| Total | 29 | 67 | 11 | 48 | 155 |
In addition to the ice cream samples, six ice lollies were
taken for bacteriological examination and all proved to be
satisfactory.
Results of this yea’s sampling were much about the same
as last year and in the cases where unsatisfactory results were
received appropriate action was taken.
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