A History of Epidemics in Britain, Volume 2 (of 2) / From the Extinction of Plague to the Present Time

by Charles Creighton

The epidemic Constitutions following the Great Plague.

During the ten or twelve years following the Great Plague of London, the epidemic maladies which Sydenham dwelt most upon as the reigning types will appear on close scrutiny to have been on the whole proper to the earlier years of life. This cannot be shown in the simple way of figures; for the ages at death from the several maladies, although they were in the books of the Parish Clerks, were not published.

There was some continued fever every year, which we may take to have been chiefly the endemic typhus of a great city, and there were also deaths among adults due to those reigning epidemics which fell most on the young. In 1667 and 1668 the leading epidemic was smallpox, with a continued fever towards the end of the period which Sydenham called “variolous,” for no other reason, apparently, than that it was part of a variolous constitution. In the autumn of 1669, and in the three years following, the epidemic mortality was peculiarly infantile, in the form of diarrhoea or “griping in the guts,” with some dysentery of adults, and some measles in 1670. From 1673 to 1676, the constitution was a comatose fever, which chiefly affected children, with a sharp epidemic of measles in the first half of 1674, attended by a very high mortality from all causes, and a severe smallpox in the second half of 1674, attended by a much lower mortality from all causes. There was also an influenza for a few weeks in 1675. In 1678 the “intermittent” constitution returned, having been absent for thirteen years, and continued through 1779-80, until its “strength was broken.” In 1681 smallpox was unusually mortal, the deaths being more than in any previous year. Most of these constitutions fall to be dealt with fully in other chapters: but as we are here specially concerned with the succession to the plague, it is to be noted how largely the epidemic mortality in London fell upon the age of childhood for a number of years after the Great Plague of 1665. It was observed both by English and foreign writers that the next epidemic following the Black Death of 1348-49, namely, that of 1361 in England and of 1359-60 in some other parts of Europe, fell mostly upon children and upon the upper classes of adults. There is doubtless some particular application of the population principle in the earlier instance as in the later, but not the same application in both. The conditions at the beginning of the three hundred years’ reign of plague in Britain were different from those at the end of it. The increased prevalence of smallpox in the generation before the last great outburst of plague, and the infantile or puerile character of the epidemic fever of 1661, as described by Willis, show that the incidence of infectious mortality had already begun to shift towards the age of childhood. It looks as if the conditions of population, intricate and obscure as they must be confessed to be, were somehow determining what the reigning infectious maladies, with their special age-incidence, should be. Such a gradual change is the more probable for the reason that infectious mortality came in due time to be mostly an affair of childhood. The plague, which was the great infection of the later medieval and earlier modern period, was peculiarly fatal to adult lives; on the other hand, the mortality from infectious diseases in our own time falls in much the larger ratio upon infants and children. It looks as if this change, now so obvious, had begun before the end of plague in Britain, having become more marked in the generation following its extinction. The direct successor of plague, so far as concerns age-incidence and nosological affinity, was the pestilential or malignant typhus, which came into great prominence in 1685-86, in circumstances that seemed to contemporaries to forebode a return of the plague. But before we come to that, there remains a little to be said of some other fevers, especially of the comatose fever of 1673-76, which was largely an affair of childhood.

Pepys says that he went on 3 May, 1668, to Old Street (St Luke’s) to see Admiral Sir Thomas Teddiman, “who is very ill in bed of a fever,” and, in a later entry, that he “did die by a thrush in his mouth” on the 12th of May. Next year, 1669, Pepys and his wife went on tour through several parts of Europe, and had hardly returned to their house in Seething Lane when the lady fell ill of a fever; on 2nd November, it was “so severe as to render her recovery desperate,” and on 10th November she died, in her 29th year,—a surprising sequel, as her husband felt, to a “voyage so full of health and content.” These two years, for which we have a sample of the London fevers, were marked in the Netherlands by epidemics of fevers which are among the most extraordinary in the whole history. At Leyden in 1669 the fever reached such a height as to cut off 7000—a mortality which would not have been surprising if the disease had been plague; but it was not plague, it wanted the buboes, carbuncles &c., was longer in its course, and, strangest of all, affected the upper classes far more severely than the poor, so much so “that of seventy men administering the public affairs, scarcely two were left[25],” while, according to Fanois, who was the Leyden poor’s doctor, the lower classes, “protected as it were by having survived the simpler forms of fever,” suffered from this malignant epidemic far less than the rich[26]. The mortality is said to have risen as high as three-fourths of the attacks. At Haarlem the burials in a week rose to three or four hundred (which was a fair week’s average for London itself in an ordinary season), the epidemic lasting four months and leaving hardly one family untouched. Among the symptoms were extreme praecordial anxiety, weight at the pit of the stomach, constant nausea and loathing, vomiting, in part bilious but chiefly “pituitous,” thirst and restless tossing. It was attended by an affection of the throat and mouth—an angina with aphthae or thrush of the palate. The pools and other sources of water for domestic use were unusually stagnant that summer in Holland, and were commonly blamed for the epidemic; but Fanois points out that at Haarlem and Emden, where similar fevers raged, “salubriores non desunt aquae[27].”

After such an instance as the Leyden fever of 1669, nothing is incredible in the records of fever subsequent to the extinction of plague. Turning to Sydenham’s account of the continued fever which occurred in London during the same season, the latter half of 1669, as well as in the three years following, we find that it was characterized rarely by diarrhoea or sweats, commonly by pain in the head, by a moist white tongue which afterwards became covered by a dense skin, and by a greater tendency than Sydenham had ever seen to aphthae (the “thrush in the mouth” of Admiral Teddiman in 1668) when death threatened—the same being a “deposition from the blood of foul and acrid matter upon the mouth and throat.” But London in 1668 and 1669 suffered little from fevers in comparison to Leyden, Haarlem and other Dutch towns, its high mortality in the summer and autumn of 1669 being from infantile diarrhoea, cholera nostras and dysentery.

Sydenham’s continued fever from 1673 to 1676 (he was absent from his practice in 1677 owing to ill health) was a malady which affected adults as well as children, but, it would appear, the latter especially. The only characteristic case given is of a boy of nine who did not begin to mend until the thirtieth day. Many recovered in a fortnight, while others were not clear of the fever in a month. On account of the remarkable stupor which almost always attended it, Sydenham called the fever of this constitution a comatose fever. It began with sharp pains in the head and back, pains in the limbs, heats and chills, etc. His account of the comatose state is exactly like that given by Willis for the fever of children in 1661—profound stupor, sometimes for a week long, so profound in some as to pass into absolute aphonia (the “acute fever with dumbness” of later writers), while others would talk a few words in their sleep, or would seem to be angry or perturbed by something (the chimaeras mentioned by Willis) and would then become tranquil again; when roused to take physic or to drink they would open the eyes for a moment and then fall back into stupor. When they began to mend, they would crave for absurd things to eat or drink. During convalescence the head, through weakness, could not be kept straight but would incline first to one side and then to the other[28].

The years 1678-1680 witnessed remarkable epidemics of ague, such as had occurred on several occasions before, the last in the years 1657-59. They engross so much of Sydenham’s writing, especially in connexion with the Peruvian-bark controversy, that we hear little of any other fever until the great epidemic of continued fever, or typhus, in 1685-6. But he does mention briefly that the interval between the decline of the agues in 1680 and the beginning of the “new fever” of 1685, was occupied by “continued depuratory” fevers—depuratory of the dregs of the preceding intermittent constitution, and comparable in that respect to the fevers of 1661-64 which followed the agues of 1657-59[29].

Sydenham’s term “depuratory” does not help us much; but we learn something from Morton as to what fevers were prevalent, besides the epidemical intermittents, in the years preceding the epidemic of 1685-86. Morton classes them as continued συνεχής (Synocha), by which he means something less malignant than Synochus. A fever which began in the milder form would often degenerate into the more malignant, the cause assigned, in the usual recriminatory manner of the time between rival schools, being mistaken treatment. But sometimes the fever was malignant from the outset, with purple spots, petechiae, morbillous efflorescence, watery vesicles on the neck and breast, buboes, and anthraceous boils. All these fevers, says Morton, whether they were spurious forms of synocha, or malignant from the outset, were sporadic, “neque contagione, ut in pestilentiali constitutione, sese propagabant[30].” This points to their having been part of that strange aguish epidemic of which an account is given in another chapter. In Short’s abstracts of parish registers, the year 1680 seems to have been the most unhealthy of the series in country parishes, and that is borne out by one Lamport, or Lampard, an empiric who practised in Hampshire: “I will tell you somewhat concerning a malignant fever. In the year ’80 or ’81 there were great numbers of people died of such fevers, many whereby were taken with vomitings, etc., yet I had the good fortune to cure eighteen in the parish of Aldingbourn, not one dying, in that great compass, of that disease[31].” The moral is that the empiric recovered his cases, whereas the regular faculty lost theirs; which means that the fevers were of various degrees, some aguish, some typhus, as in the exactly similar circumstances a century after, 1780-85.

In the London Bills from 1681 to 1684, the deaths from fever were many, with some from “spotted fever” nearly every week, while the annual mortalities from all causes were high. It is the more remarkable, therefore, that Sydenham should have discovered, in the beginning of 1685, the outbreak of a new fever, different from any that had prevailed for seven years before. The explanation seems to be that a malignant typhus fever, such as might have been discovered in any year in the crowded parishes where the working classes lived, broke out at the Court end of the town, where Sydenham’s practice lay.