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
Sutton and Cheam 1954
[Report of the Medical Officer of Health for Sutton and Cheam]
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B - Sewer Treatments
(1) Treatment No. 16 - Second Maintenance Treatment
(1953-1954)
The second maintenance treatment of soli sewer-manholes in
areas known to be infested from the previous treatment and those
sections found to be infested during the annual 10 per cent
test baiting (1953-54) was completed on the 17th March, 1954.
Prebaiting with damped sausage rusks was carried out on
two consecutive days and the same bait base with 2½ per cent
Zinc Phosphide added was laid on the third day with the following
results:-
SECTIONS
| A | B | C | D | E | Total | |
|---|---|---|---|---|---|---|
| Number of Manholes prebaited | 17 | 6 | 82 | 86 | 31 | 222 |
| Complete prebait takes | 1 | - | 7 | 3 | 6 | 17 |
| Partial prebait takes | 1 | - | 13 | 3 | 8 | 25 |
| Percentage of takes C. and P.) | 11.7 | - | 24.4 | 6.9 | 45.1 | 18.9 |
| Number of manholes poison baited | 5 | - | 29 | 14 | 18 | 66 |
The number of prebait takes shew a further decrease of
6.0 per cent on the previous maintenance treatment.
(2) Test Baiting (1954-55)
The Borough was divided into five sections, as in previous
tests, and a test baiting of 10 per cent of the soil-sewer
manholes in areas previously cleared or thought not to be
infested was carried out during the month of August.
The following is a tabulated summary of the results:-
SECTIONS
| A | B | C | D | E | Total | |
|---|---|---|---|---|---|---|
| Number of manholes baited | 13 | 25 | 70 | 62 | 30 | 200 |
| Complete bait takes | 5 | - | - | 8 | 5 | 18 |
| Partial bait takes | 1 | - | - | 4 | 1 | 6 |
| Baits not taken | 7 | 25 | 70 | 50 | 24 | 176 |
| (3) Treatment No. 17 - First Maintenance Treatment (1954-55) | ||||||
This treatment was confined to the areas known to have
been infested during the previous maintenance treatment together
with sections proved to be infested by the annual 10 per cent
Test, and operations were completed on the 9th October, 1954.
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