§2.48.1ἤρξατο δὲ τὸ μὲν πρῶτον, ὡς λέγεται, ἐξ Αἰθιοπίας τῆς ὑπὲρ Αἰγύπτου, ἔπειτα δὲ καὶ ἐς Αἴγυπτον καὶ Λιβύην κατέβη καὶ ἐς τὴν βασιλέως γῆν τὴν πολλήν. §2.48.2ἐς δὲ τὴν Ἀθηναίων πόλιν ἐξαπιναίως ἐσέπεσε, καὶ τὸ πρῶτον ἐν τῷ Πειραιεῖ ἥψατο τῶν ἀνθρώπων, ὥστε καὶ ἐλέχθη ὑπ’ αὐτῶν ὡς οἱ Πελοποννήσιοι φάρμακα ἐσβεβλήκοιεν ἐς τὰ φρέατα· κρῆναι γὰρ οὔπω ἦσαν αὐτόθι.
began, as is said, first in Ethiopia above Egypt, and then descended into Egypt and Libya and into most of the King's territory. the city of the Athenians it fell suddenly, and at first attacked the people in Piraeus, so that it was even said by them that the Peloponnesians had thrown poison into the wells; for there were not yet public fountains there.
ὕστερον δὲ καὶ ἐς τὴν ἄνω πόλιν ἀφίκετο, καὶ ἔθνῃσκον πολλῷ μᾶλλον ἤδη. §2.48.3λεγέτω μὲν οὖν περὶ αὐτοῦ ὡς ἕκαστος γιγνώσκει καὶ ἰατρὸς καὶ ἰδιώτης, ἀφ’ ὅτου εἰκὸς ἦν γενέσθαι αὐτό, καὶ τὰς αἰτίας ἅστινας νομίζει τοσαύτης μεταβολῆς ἱκανὰς εἶναι δύναμιν ἐς τὸ μεταστῆσαι σχεῖν· ἐγὼ δὲ οἷόν τε ἐγίγνετο λέξω, καὶ ἀφ’ ὧν ἄν τις σκοπῶν, εἴ ποτε καὶ αὖθις ἐπιπέσοι, μάλιστ’ ἂν ἔχοι τι προειδὼς μὴ ἀγνοεῖν, ταῦτα δηλώσω αὐτός τε νοσήσας καὶ αὐτὸς ἰδὼν ἄλλους πάσχοντας.
But later it reached the upper city as well, and they were dying now in much greater numbers. each, therefore, speak about it as he understands, both physician and layman, from what source it was likely to have arisen, and what causes he thinks were sufficient to have the power to effect such a change; but I shall describe what it was like, and shall declare those symptoms by studying which, if it should ever attack again, one would, having some prior knowledge, be best able not to fail to recognize it, having both suffered from the disease myself and seen others suffering from it myself.