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
City of London 1926
[Report of the Medical Officer of Health for Port of London]
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Chickenpox-
| Date. | Name of Vessel, Port of Registry and Official No | Where from. | No. of Cases. | How dealt with. |
|---|---|---|---|---|
| 1926. | Brought forward | 1 3 | ||
| Jan 19 | ss " Kabinga," London, 125599. | Hamburg | 1 | Removed to Port Sanitary Hospital, Denton. |
| Feb 4 Mar 18 | ss " Ranchi," Newcastle. ss " Rajputana," Greenock. | Bombay | 1 1 | Proceeded home Landed at Gibraltar. |
| „ 23 | House-boat " Rosa lohn " | Leigh-on-Sea | Remained on board. | |
| „ 27 | ss " Mongolia," Newcastle, 145517. | Sydney | 1 | Isolated on board. |
| „ 29 | ss " Rajputana," Greenock. | Bombay | 1 | Removed to Port Sanitary Hospital, Denton. |
| April 2 | ss " Mongolia," Newcastle, 145517. | Sydney | 1 | Isolated in ship's hospital. |
| „ 12 | ” ” | ” | 3 | Removed to Port Sanitary Hospital, Denton. |
| „ 12 | TS " Arethusa." | Greenhithe | 1 | Removed to ship's hospital ashore. |
| „ 15 | ss " Otranto." | Sydney | 2 | Well on arrival. |
| „ 15 | ss " Ranchi," Newcastle. | Bombay | 1 | Landed at Plymouth. |
| ,, 16 | ss " Mongolia," | Sydney | 1 | Removed to Port Sanitary |
| Newcastle, 145517. | Hospital, Denton. | |||
| May 11 | ss " Ballarat," Greenock, 145596. | „ | 1 | Landed at Plymouth |
| July 13 | P & 0 " Go Down." | Tilbury Dock | 1 | Removed to Port Sanitary. Hospital, Denton. |
| „ 27 | ” | 1 | ” ” | |
| Aug 26 | ss " Khyber," Liverpool, 125564. | Bombay | 1 | ” ” |
| „ 26 | ss " Naldera," Greenock, 142257. | - | 1 | ” ” |
| Sept 9 | ss " Ormonde," Glasgow, 141866. | Brisbane | 1 | ” ” |
| „ 16 | TS " Cornwall " | Grays | 1 | ” ” |
| „ 22 | ss " Marburn," Glasgow, 111248. | Montreal | I | ” ” |
| „ 23 | House-boat " Sea Point." | Leigh Creek | 1 | Remained on board. |
| Oct 19 | ss " Baltriger," London, 145064. | Danzig | 1 | Removed to Port Sanitary Hospital, Denton. |
| Dec 1 | ss " Baltannic," London, 148640. | Riga | 1 | ” ” |
| „ 10 | ss " Berrima," Greenock, 135322. | Sydney | 1 | Landed at Southampton. |
| Total | 31 | |||
DENGUE FEVER
An addition to our exact knowledge on this disease has been made by human
experiment on volunteers, and may be summarised as follows:-
1 Vector of Infection, the mosquito Aedes egypti (not the also suspected
Culex quinquefasciatus)
2 A human being is infective to the mosquito from 18 hours before to three
days after onset of the disease
3 The mosquito infected, becomes infective to man in from 11 to 14 days
after sucking blood from a human being suffering from the disease
4 The mosquito remains then infective for man 75 days (proven) oritslife-time
5 The disease shows in man in from 4 to 10 days after being bitten by infected
mosquitos
The above data are from the Phillipine Islands
The limit of the Aedes egypti mosquito is the 60 deg F isotherm This isotherm,
in the summer and winter northern mean, passes along a line roughly
Florida, Southern Spain, Himalayas, Hong Kong
Thus cases of Dengue can be, and have been, reported from Southern Europe,
and in hot weather even to latitude 42 deg N
The Aedes egypti (synonyms Stegomyia calopus, Aedes calopus, Stegomyia
fasciata) is also the disseminating agent for Yellow Fever; by geographical
situation (in relation to temperature and the requirements of this mosquito) England
must of necessity be free from the gnat itself and from both of the pests it conveys
I have formerly reported epidemics of Dengue on shipboard, which have
occurred along the Indian coast