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 1948

[Report of the Medical Officer of Health for Sutton and Cheam]

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Table: Pre-baiting with damped sausage-rusks was carried out on two consecutive days, and the same bait base with 2½% Zinc Phosphide added was laid on the third day with the following results:-

Pre-baiting with damped sausage-rusks was carried out on two consecutive days, and the same bait base with 2½% Zinc Phosphide added was laid on the third day with the following results:-

Section.No. of manholes pre-baited.Unpoisoned Pre-baits laid.No. of manholes poison baited.
Complete bait takes.Partial bait takes.Baits not taken.
A102175
B-----
C322-305
D5721544
e71i-703
Total1707216117

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These figures shew an improvement on the first maintenance
treatment which produced 11 complete takes of prebait and no
partial takes.
2. 10% Test (1948-49).
A test baiting of 10% of the soil-sewer manholes in the
Borough was again carried out and completed on the 14th July, 1948.
The test was carried out in relationship with the previously
recorded surface rat infestations in the Borough. Again very
little evidence of any connection between surface and sewer infestations
was revealed by the test.

Table: The Borough was divided into five sections and the results were as follows:-

The Borough was divided into five sections and the results were as follows:-

Section.No. of manholes baited.Complete Bait takes.Partial Bait takes.Baits not taken.
A243-21
B601-59
C5513-42
D474-43
E.18--10
Total20421-183

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It is interesting to note that the number of bait-takes is
50% less than in the 1947 10% Test, and Section E, which then
shewed a 50% take, is now clear of infestation.
3. First Maintenance Treatment (1948-49).
The first maintenance treatment of those sewers found to be
infested during the 10% Test was completed on the 25th September,
1948.

Table: Pre-baiting with damped sausage rusks was carried out on two consecutive days, and the same bait base with Zino Phosphide added was laid on the third day with the following results:-

Pre-baiting with damped sausage rusks was carried out on two consecutive days, and the same bait base with Zino Phosphide added was laid on the third day with the following results:-

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