PART I
The Thomas Street Cholera Outbreak of 1849āA Contested Natural Experiment
DOCUMENT 1:
Asiatic Cholera Approaches the British Isles: General Board of Health, Guidelines for Managing Epidemic Cholera (7 October 1848)1
The General Board of Health established by the Public Health Act of 1848 had three members: A president, George Howard (7th Earl of Carlisle), and two commissioners, Anthony Ashley-Cooper (Lord Ashley) and Edwin Chadwick. Henry Austin, a civil engineer, served as secretary. Thomas Southwood Smith (a physician) was medical advisor. John Sutherland (a physician) and Richard Grainger (a surgeon) were the chief medical inspectors.
The Board was constituted on 22 September 1848, the very day the first fatal case of Asiatic cholera appeared in London. Six days later, the government invoked an emergency clause which granted the General Board of Health temporary power to impose its guidelines for nuisance removal and disease prevention throughout the kingdom (except the City of London, which had a new, independent medical officer of health).2 The board issued its first notification on 5 October 1848. The London Gazette, the official record for the United Kingdom, published it the following day, major newspapers shortly thereafter.
The General Board of Health, having considered the official accounts which have been received of the course of Asiatic cholera, ⦠have now to represent that the experience obtained with this disease during its former invasions of this country in the years 1831 and 1832, and the still larger experience acquired during its recent progress through Persia, Egypt, Syria, Russia, Poland, and Prussia, appears to afford ground for the correction of some views formerly entertained concerning itā¦.
The extent, uniform tenor, and undoubted authority of the evidence obtained from observers of all classes in different countries and climates ⦠appear to discredit the once prevalent opinion that cholera is, in itself, contagious; an opinion which, if fallacious, must be mischievous since it diverts attention from the true source of danger and the real means of protection, and fixes it on those which are imaginary; creates panic; leads to the neglect and abandonment of the sick; occasions great expense for what is worse than useless; and withdraws attention from that brief but important interval between the commencement and the development of the disease during which remedial measures are most effective in its cure.
Although it is so far true that certain conditions may favour its spread from person to person, as when great numbers of the sick are crowded together in close, unventilated apartments, yet this is not to be considered as affecting the general principle of its non-contagious nature. Nor are such conditions likely to occur in this country. Moreover, the preventive measures founded on the theory of contagionānamely, internal quarantine regulations, sanitary cordons, and isolation of the sick on which formerly the strongest reliance was placed, have been recently abandoned in all countries where cholera has appearedā¦.
The evidence also proves that cholera almost always affords by premonitory symptoms warning of its approach in time for the employment of means capable of arresting its progress. Indeed, in certain situationsāas where there is an unusual concentration of the poison, or in certain individuals who are peculiarly predisposed to the diseaseāthe attack may sometimes appear to be instantaneous. Still, the general conclusions that cholera is not in itself contagious and that it commonly gives distinct warning of its approach, are two great facts well calculated to divest this disease of its chief terrors and to show the paramount importance of the means of prevention, so much more certain than those of cure.
The proved identity of the causes which promote the origin and spread of epidemic diseases in general with those that favour the introduction and spread of Asiatic cholera, appear to indicate the true measures of precaution and prevention against a pestilence which, after an absence of 16 years, and at a season when other formidable epidemic diseases are unusually prevalent and deadly, menaces [another] visitationā¦. The General Board of Health recommends that the guardians of the poor ⦠should hold themselves in readiness to execute such directions as the General Board of Health may see fit to issue from time to time ⦠under the provisions of the act āfor the more speedy removal of certain nuisances and the prevention of contagious and epidemic diseases.ā
The guardians of the poor ⦠will probably be required, either by themselves individually or by persons employed or specially appointed by them, ⦠to make examinations from house to house of ⦠the state of each locality as far as regards the prevalent sickness and the removable causes upon which [cholera] may appear to dependā¦. It is to be kept in mind that every district or place is dangerous in which typhus and other epidemic diseases have regularly occurredā¦. Great benefit having been derived from the cleansings that were resorted to on the former [1831ā32] visitation of cholera, ⦠the boards of guardians should carry into immediate effect all practical measures of external and internal cleansing of dwellings in the ill-conditioned districts.
The chief predisposing causes of every epidemic, especially of cholera, are damp moisture, filth, animal and vegetable matters in a state of decomposition, and, in general, whatever produces atmospheric impurity. All ⦠have the effect of lowering the health and vigour of the system and of increasing the susceptibility to disease, particularly among the young, the aged, and the feeble. The attacks of cholera are uniformly found to be most frequent and virulent in low lying districts, on the banks of rivers, in the neighbourhood of sewer mouths, and wherever there are large collections of refuse, particularly amidst human dwellingsā¦. Householders of all classes should be warned that their first means of safety lies in the removal of dung heaps and ⦠filth of every description from beneath or about their houses and premises. Persons long familiarized to the presence of such refuse may not perceive its offensiveness nor believe in its noxious properties. Yet all who desire to secure themselves from danger should labour for the entire removal of filth and the thorough cleansing of their premises, which the law requires of each person for the protection of his neighbours as well as for his own safety. Next to the perfect cleansing of the premises, dryness ought to be carefully promoted, which will of course require the keeping up of sufficient fires [in stoves, etc.]ā¦. But while a certain amount of cleansing can be effected by every householder, ⦠the means of thoroughly purifying the densely populated districts are beyond the power of private individuals. Accordingly, ⦠in cases of inability, insufficiency, or neglect, the law has charged the cleansing operations upon certain public bodies ⦠[such as] ācommissioners for the drainage, paving, lighting or cleansing, ⦠[and] sewers, or guardians of the poor.ā
By this act, it is provided that upon notice in writing, signed by two or more inhabitant householders, that any dwelling-house or building is in a filthy and unwholesome condition, or that there are upon such premises any foul and offensive cesspool, drain, gutter, or ditch, or any accumulations of filth, or that swine are so kept as to be a nuisance or injurious to health, the authorities shall examine or cause the premises to be examined. And if upon examination, or upon a medical certificate of two legally qualified practitioners, it appears that the nuisance exists, the public authority shall make complaint before two justices who are required to make order for the removal of such nuisanceā¦.
Union medical officers, whose duties take them to the relief of the destitute sick, are necessarily familiar with the places in which disease is most prevalent and fatal. These are invariably found to be the dirtiest localities where ⦠cleansing operations are most requiredā¦. In several districts, the police in going their usual rounds have been employed with great advantage in reporting daily as to the houses, courts, alleys, passages, and streets ⦠in need of cleansingā¦. Highly important services have been rendered by the parochial clergy and other ministers of religion, in association with lay committees, for the purpose of maintaining a system of house-to-house visitation in the more depressed districtsā¦.
The General Board of Health is required to frame rules and regulations to assist and direct the guardians of the poor and other local authorities in the performance of the special duties imposed upon them whenever the country is visited or ...