Dr. Stewart observed that all those persons who had been affected by the yellow fever in former years, had mild remittents in the same situations that others had the prevailing epidemic in a malignant form.
In one of four bodies the doctor examined, he found six, and in another three intussusceptions of the intestines, without any signs of inflammation. He discovered the common marks of disease from this fever in other parts of those bodies.
The deaths from this fever amounted to between three and four hundred. They would probably have been more numerous, had not those families who were in competent circumstances fled into the country, and had not the poor been removed, by the board of health, from the infected atmosphere of Southwark, to tents provided for them in the neighbourhood of the city; and they would probably have been fewer, considering the tractable nature of the disease, when met by suitable remedies in its early stage, had not the sick concealed their indisposition, in many instances, for two or three days, lest they should be dragged to the city hospital, or have centinels placed at their doors, to prevent any communication with their friends and neighbours. While these attempts were made to check the progress of the fever, it did not escape the notice of many of the citizens of Philadelphia, that not a single instance occurred of its being communicated by contagion, in any of the families in the city, in which persons had sickened or died with it, and that while the sick were deprived of the kind offices of their friends and neighbours, lest they should be infected, physicians, and the members of the board of health, passed by the guards every day, in their visits to the same sick people, and afterwards mixed with their fellow-citizens, in every part of the city, without changing their clothes.
The yellow fever appeared early in the season in New-Haven, in Connecticut, and in Providence, on Rhode-Island, in both of which places it was derived from putrid exhalation, and was speedily and effectually checked by removing the healthy persons who lived in its neighbourhood to a distance from it. Several sporadic cases of it occurred during the autumn in Gloucester county, in New-Jersey, and in Mifflin and Chester counties, in Pennsylvania. It was epidemic in New-York at the same time it prevailed in Southwark and Philadelphia. The following extract of a letter from the health officer of New-York, to one of his friends, contains a satisfactory proof that it was not, in that city, an imported disease.