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
Surbiton 1951
[Report of the Medical Officer of Health for Surbiton]
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In February the fifth maintenance treatment of the Corporation's sewer system was carried out, followed "by the sixth maintenance treatment in August, the results of the two treatments being as follows:–
| 5th Maintenance treatment. | 6th Maintenance treatment. | |||||
|---|---|---|---|---|---|---|
| Area X | No.Manholes pre-baited | No.of manholes showing takes of pre-bait and subsequently poison baited. | No.of manholes showing takes of poison bait | No.of manholes pre-baited. | No.of manholes showing takes of pre-bait and subsequently poison baited. | No. of manholes showing takes of poison bait. |
| 1 | Nil | – | – | Nil | – | – |
| 2 | 26 | 8 | 7 | 19 | 14 | 6 |
| 3 | 4 | 3 | 3 | 6 | Nil | – |
| 4 | 9 | Nil | – | Nil | – | – |
| 5 | Nil | – | – | Nil | – | – |
| 6 | 13 | 6 | 5 | 10 | Nil | – |
| 7 | Nil | - | – | Nil | - | – |
| 8 | 5 | Nil | - | Nil | – | – |
| 9 | Nil | - | - | Nil | – | – |
| 57 | 17 | 15 | 35 | 14 | 6 | |
In December an annual test baiting of the Corporation's sewers was carried out the results being as follows:-
| Area X | No. of manholes test baited. | No. of manholes showing partial takes of test bait | No. of manholes showing complete takes of test bait. | No. of manholes showing no take of test bait. |
|---|---|---|---|---|
| 1 | – | Nil | 1 | 12 |
| 2 | 14 | Nil | Nil | 14 |
| 3 | 21 | Nil | 1 | 20 |
| 4 | 29 | Nil | 3 | 26 |
| 5 | 12 | Nil | Nil | 12 |
| 6 | 32 | Nil | 4 | 28 |
| 7 | 10 | Nil | Nil | 10 |
| 8 | 34 | Nil | 2 | 32 |
| 9 | 35 | Nil | Nil | 35 |
| 200 | Nil | 11 | 189 |
37.