Typhus fever perennial in London.

Sydenham says that a continued fever, the symptoms of which so far as he gives them suggest typhus, was mixed with the masked intermittent, (or the convulsive fever of children, as in Willis’s account), in every one of the years 1661-4; and that statement raises a question which may be dealt with here once for all. Fever in the London bills is a steady item from year to year, seldom falling below a thousand deaths and in the year 1741, during a general epidemic of typhus, rising to 7500. The fevers were a composite group, as we have seen, and shall see more clearly. But the bulk of them perennially appears to have been typhus fever. Where the name of “spotted fever” is given there can be little doubt. Every year the bills have a small number of deaths from “spotted fever,” and the number of them always rises in the weekly bills in proportion to the increase of “fever” in general, sometimes reaching twenty in the week when the other fevers reach a hundred. It would be a mistake to suppose that only the fevers called spotted were typhus, the other and larger part being something else. The more reasonable supposition is that the name of spotted was given by the searchers in cases where the spots, or vibices or petechiae of typhus were especially notable. If a score, or a dozen or half-a-dozen deaths in a week are set down to spotted fever, it probably means that a large part of the remaining hundred, or seventy, or fifty cases of “fever” not called spotted were really of the same kind, namely typhus. In the plague itself, the “tokens,” which were of the same haemorrhagic nature as the larger or more defined spots of typhus, were exceedingly variable[19]. One of the synonyms of typhus (the common name in Germany) is spotted typhus; but the spots were of at least two kinds, a dusky mottling of the skin and more definite spots, sometimes large, sometimes like fleabites.

Assuming that the cases specially called “spotted” in the London Bills were only a part of all that might have been called by the same name in the wider acceptation of the term (as in Germany), it is a significant fact that there are few of the weekly bills for a long series of years in the 17th and 18th centuries without some of the former. Such a case as that of Mr Samuel Crewe, brother of Lord Crewe, who died of the “spotted fever” on 2 July, 1661, probably means that there were more cases of the same kind in the poorer parts of the town, from which no account of the reigning sicknesses ever came unless it were the number of deaths in the bills. The conditions of endemic typhus were there long before we have authentic accounts, towards the end of the 18th century, of that disease being ever present in the homes of the lower classes. In the time of Sydenham, and even in the time of Huxham two generations after, there was no thought of the unwholesome domestic life graphically described by Willan and others, as a cause of typhus—the overcrowding, the want of ventilation, the foul bedding and the excremental effluvia.

If there had been any reason to suppose that the London of the Restoration, or of the time of Queen Anne, or of the first Georges had enjoyed better public health in its crowded liberties and out-parishes than we know it to have done from the time when the authentic accounts of Lettsom and other dispensary physicians begin, then one might err in assuming the perennial existence of typhus fever and in assigning to that cause the bulk of the deaths under the heading of “fevers” in the Parish Clerks’ bills. But the public health was undoubtedly worse in the earlier period. A writer as late as the year 1819, who is calling for that reform of the dwellings of the working classes in London which was soon after carried out, namely the construction of regular streets instead of mazes of courts and alleys, speaks of the “silent mortality” that went on in the latter[20]. It was still more silent in earlier times, when the west end of London knew nothing of what was passing in the east end[21].

In all matters of public health, after the somewhat romantic interest in plague had ceased, the poorer parts of London were for long an unexplored territory. Dr John Hunter, who had been an army physician and was afterwards in practice in Mayfair, began about the year 1780 to visit the homes of the poor in St Giles’s or other parishes near him, and was surprised to find in them a fever not unlike the hospital typhus of his military experience. I quote at this stage only a sentence or two[22].

“It may be observed, that though the fever in the confined habitations of the poor does not rise to the same degree of violence as in jails and hospitals, yet the destruction of the human species occasioned by it must be much greater, from its being so widely spread among a class of people whose number bears a large proportion to that of the whole inhabitants. There are but few of the sick, so far as I have been able to learn, that find their way into the great hospitals in London.” I shall defer the subject of the dwellings of the working class in London until a later stage.

The “constitution” in Sydenham’s series which succeeded the febrile one of 1661-64 was “pestilential fever.” It began in the end of 1664, lasted into the spring of 1665, and passed by an easy transition into the plague proper. The bills for those months have very large weekly totals of deaths from “fever,” as well as a good many deaths from “spotted fever,” before they begin to have more than an occasional death from plague. It is this particular form of typhus fever that Bateman had in mind when he wrote, in 1818, “We never see the pestilential fever of Sydenham and Huxham”; although Willan, who preceded him at the Carey Street dispensary, described in 1799 a fever of so fatal a type that it gave rise to the rumour that the plague was back in London. The term “pestilential” was technically applied to a kind of fever a degree worse than the “malignant.”

Willis, the earliest of the Restoration authorities on fevers, had three names in an ascending scale of severity—putrid, malignant and pestilential. The putrid fevers were what we might call idiopathic, engendered within the body in some way personal to the individual from “putrefaction” or fermentation of the humours; all the intermittents were included in that class, and the theory of their cure by bark was that the drug corrected putridity. In the malignant and pestilential, an altogether new element came in—the τὸ θεῖον of Hippocrates, the mysterious something which we call infection; and of these two infectious fevers, the malignant was milder than the pestilential[23].

Morton drew out the scale of fevers in an elaborate classification, of which only the last section of continued contagious fevers concerns us at present[24]:

Synochus{
{
{
Simple Malignant Fever{Fever mostly with sweats and other
signs of malignity, but without buboes,
carbuncles, petechiae or miliary rash.
Pestilential Fever{Fever with petechiae, purple spots,
miliaria, morbillous rash on the chest.
Plague{With buboes, carbuncles and black spots.

The order in this Table was also the order in time: the fever of 1661, which Willis calls malignant, remained as the constitution of the years following until the end of 1664; then began the pestilential, which passed definitely in the spring of 1665 into the plague proper. Willis, Sydenham and Morton, differing as they did on many points of theory and treatment, all alike taught the scale of malignity in fevers and plague, and all used the language of “constitutions.” The Great Plague of 1665 was, in their view, the climax of a succession of febrile constitutions of the air, being attended by much pestilential fever and followed by a fever which Morton places in the milder class of συνεχής.