While the plague was thus raging at Malta, it made its appearance amongst the inhabitants of the Morea, having, it is supposed, been introduced from Romelia, by a man of the name of Kalangi, who was taken ill on his arrival, and died in two days. The following day his wife and daughter were attacked by the malady, which rapidly extended to Tornovo, and all the neighbouring towns. During the years 1813 and 1814, the banks of the Lepanto and the shores of Albania were nearly depopulated.
In 1815 the fatal scourge broke out in the island of Corfu, in the village of Marathia. None of the medical men who attended the sick during this period, attributed the invasion of the disease to contagion.
The doubt that had arisen in the minds of several experienced practitioners in regard to the non-contagious nature of the plague, is a matter of vital interest, since it not only concerns the health of nations, but in a commercial point of view it becomes a question of political economy of the utmost importance, as the severity of the quarantine laws, which must materially effect the prosperity of trade, would become useless if it could be proved that no contagion is to be apprehended from a free intercourse. It is somewhat curious that Dr. Mead long ago expressed his decided opinion that whenever the doctrine of non-contagion should be revived in England, (and it will be so, he adds, even a hundred years hence,) it will always excite alarm amongst those nations who are more prudent than ourselves, and less eager to entertain every kind of wild and visionary speculation.
The contagionists affirm that the destructive ravages of the plague of Marseilles in 1720, when 60,000 inhabitants were carried off, arose from neglect in enforcing a rigid separation of the diseased from the healthy part of the community. The mortality in the plague of Messina, in 1743, during which 43,000 people fell victims to the disorder, is also referred to similar causes. They also maintain that the London plague of 1593, which destroyed 11,503 persons, was ascertained to have been introduced from Alkmaer; that the pestilence of London in 1603, which carried off 36,269 inhabitants, was brought from Ostend, and further that in 1636, the scourge which destroyed 13,480 victims in our metropolis, had been imported from Leyden. In 1665, when its still more fatal ravages swept away 68,596 citizens, it had also been traced to our foreign intercourse. Dr. Merlens who has accurately described the plague that raged at Moscow in 1771, asserts that it was introduced by a communication with the Turkish army. Notwithstanding which, by keeping the patients strictly guarded, the city was maintained free from infection, while the disease raged around in every quarter.
Mr. Jackson gives a similar account of the plague at Morocco; and he adds, that daily observations convinced him that the epidemic was not caught by approach, unless that approach was accompanied by an inhaling of the breath, or by tending upon the infected person. With such a discrepance of opinion, we cannot be surprised at this anxiety to impugn the doctrine of those practitioners who maintain, that contagion is not to be dreaded, and that severe sanitary precautions are therefore vexatious and oppressive. If the progress of the disease, say the non-contagionists, depends upon personal contact with infected persons or goods, its ravages would never cease in those countries where no precautionary measures are taken to prevent communication between the infected and the healthy; that in Turkey for instance, where these precautions are not resorted to, there would be no cessation of the malady until it had swept away the whole of the population.
To these arguments, plausible as they may appear in theory, it has been replied, that the plague to a certain extent has never ceased to exist in the Ottoman empire, but breaks out occasionally after temporary intermissions. As to the permanence of the diseases it is well known that like all other epidemic or endemic diseases, the plague may also be subject to atmospheric influence and be arrested in its progress without human aid. Sir James M’Grigor illustrates this fact in his “Sketches of the Expedition of the Indian Troops to Egypt.” When the disease first broke out in the army, the cases sent from the regiments were from the commencement attended with typhoid symptoms; while those from the Bengal volunteer battalion, and the other corps encamped near the marshes of El Hamed, were of an intermittent and remittent type. The cases that occurred in the cold and rainy months of December and January, were of an inflammatory character, after which, as the weather became warmer, the disease at Cairo, Ghiza, Boula, and the isthmus of Suez assumed the form of a mild continual fever. The plague of London in 1665, was in like manner distinguished by a peculiar constitution of the atmosphere.
It has also been doubted whether the plague be contagious in every instance of its appearance. Various persons have inoculated themselves with its virus with impunity, though several were ultimately victims of the bold experiment. In Egypt Dr. White inoculated himself ten times, but died of the disease after the eleventh trial.[16]
The atmosphere of contagion it appears is limited, and strict attention to keep up a line of separation generally proves effectual in arresting or checking its progress. Contact appears necessary to extend the malady, and a direct absorption through the skin forms the ordinary means of transmission. When the cutaneous pores are closed by oil, or any other substance of the kind, an exemption from the fatal scourge has been frequently observed. Mr. Baldwin states, that among upwards of a million of inhabitants carried off by the plague in Upper and Lower Egypt during the space of four years, not a single oil-man, or dealer in oil, had suffered. Mr. Jackson made the same observation in the plague of Tunis. Dr. Assalini, an intelligent medical officer of the French army in Egypt, does not attribute this exemption to the stoppage of the pores, but as the result of profuse perspiration which the inunction of oil produces. The zeit jagghy or olive oil, is considered a specific by most of the Asiatics; and my late friend Mr. Tully observed that all the attendants upon patients suffering from the plague, who carefully smeared their persons and their clothes with this substance, were exempt from the infection. The same observation was corroborated by Sir Brooke Faulkener, during the plague of Malta.
Various have been the remedial means proposed in this terrific malady, and preservatives against it have been recorded in the following distich:
Hæc tria labificum tollunt adverbia pestem;
Mox, longè, tardè,—cede, recede, redi.