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 1962

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

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Table: Methods employed in clearing premises of rats and mice, were as follows:-

Methods employed in clearing premises of rats and mice, were as follows:-

Warfarin and other Poison Baits458
Rat and Mouse Proofing-
Drains repaired3
Total461

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B. Sewer Treatments
(1) Treatment No. 30 - Second Maintenance Treatment (1961-62)
The second maintenance treatment of soil sewer-manholes in the area
found to be infested during the previous treatment was completed on the
30th March, 1962.
Anticoagulant poison - Warfarin 0.5% Master Mix was used with pinhead
oatmeal, technical white oil, castor sugar, and para-nitrophenol (mould
inhibitor) as a bait base.
Rebaiting of all infested manholes continued until no bait takes were
recorded.

Table: The following is a summary of the results obtained:-

The following is a summary of the results obtained:-

Number ofSections
ABCDETotal
Manholes baited - 1st visit2658617331249
Complete takes - 2nd visit313-29
Partial takes - 2nd visit4162417
Complete takes - 3rd visit2-3-16
Partial takes - 3rd visit2-3-16
Complete takes - 4th visit2-3-16
Partial takes - 4th visit--1--1
Takes - 5th visit-----Nil

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(2) Test Baiting (1962-63)
The Borough was divided into five sections, as in previous tests, and
a test baiting of 10% of the soil sewer manholes carried out from the 20th
to 25th August, 1962.

Table: All the manholes baited were checked three days after the baits had been deposited, with the following results:-

All the manholes baited were checked three days after the baits had been deposited, with the following results:-

Number ofSections
ABCDETotal
Manholes baited--4811255215
Complete takes--47-11
Partial takes--110112
Baits not taken--439354190
Baits washed off---2-2