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

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Carshalton 1947

[Report of the Medical Officer of Health for Carshalton]

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School children included in these totals were :—
For scabies 80 For pediculosis 61
Where possible, the practice of treating all members of affected
families is followed.
Premises.
The previous practice of hydrogen cyanide fumigation for premises
badly infested by the bed bug has been resumed, and one Council
house was treated. Nine properties were treated by insecticidal spraying
as follows:—
Council Houses 5
Other Houses 4
Four other L.C.C. houses were sprayed by the staff of that Authority
Fumigation and spraying is carried out by the Department, using
various insecticidal liquids.
Two lots of bedding were destroyed during the year.
Pest Control.
Nine premises were sprayed for the eradication of flies, fleas, etc.
Thirty-three wasp nests in, or in proximity to, dwellings were
destroyed at the cost of the complainants.
Three sprayings for the destruction of mosquito larvae were
carried out.
Rats and Mice (Destruction) Act, 1919.
Ministry of Food Infestation Order, 1943 (S.R. & 0. 680) (Circular
N.S. 11 and 12).
Under the direction of the Ministry of Food, rodent destruction
was again further intensified under Schemes N.S. 11 (Sewer Treatment)
and N.S. 12 (Private Premises).
With regard to private and business premises, the year's investigations
amounted to 11,427. Arising out of these investigations and
259 complaints, 267 infestations were dealt with (251 rat and 16 mouse).
One preliminary notice was served.

The infested premises were classified as follows : —

Rats.Mice.Total.
Private Premises2177224
Business Premises18119
Council Property16824
25116267

With regard to Sewers (N.S. 11) an initial treatment was carried
out in the Autumn of 1946, after which the first maintenance treatment
was completed in April, 1947, with the following results:—
Manholes baited 468
Manholes in which takes of prebait were recorded 31
Percentage of manholes showing infestation 6½%
Percentage in relation to total manholes in district 2¾%
42