It is long since I wrote to you, because I know you must be where you could not receive my letters: and perhaps it may be some time before I write to you again, on account of a contagious and mortal fever which has arisen here, and is driving us all away. It is called a yellow fever, but is like nothing known or read of by the physicians. . . . All persons who can find asylum elsewhere, are flying from the city: this will doubtless extend it to other towns, and spread it through the country, unless an early winter should stop it. Which excerpt from Fever 1793 connects to the historical account detailed in the excerpt?