For more on plagues and leadership, see this post.
Aelian, Varia Historia 13.27
“Remember that Socrates’ body was thought to be orderly and in control of wisdom for this reason too. When the Athenians were suffering a pandemic and some were dying and others were near death, Socrates was the only one who was not sick. What mind do we think shared space with such a body?”
Ὅτι τὸ Σωκράτους σῶμα πεπίστευτο κόσμιον καὶ σωφροσύνης ἐγκρατὲς γεγονέναι καὶ ταύτῃ. ἐνόσουν Ἀθηναῖοι πανδημεί, καὶ οἱ μὲν ἀπέθνῃσκον, οἱ δὲ ἐπιθανατίως εἶχον, Σωκράτης δὲ μόνος οὐκ ἐνόσησε τὴν ἀρχήν. ὁ τοίνυν τοιούτῳ συνὼν σώματι τίνα ἡγούμεθα ἐσχηκέναι ψυχήν;
Apollonius of Tyana, 8.28
“Do these practices merely make a refinement of the senses or establish power over the greatest and most amazing forces? You need to see what I mean from different things, not the least of which were done during that epidemic in Ephesus.
When the disease was in the shape of an old beggar, I saw it and once I saw it I tackled it. I did not stop the disease but instead I destroyed it. The one I prayed to is clear as day in the temple which I built in thanks. It was for Herakles the Defender, the one I chose as a helper—because he is wise and brave, he once cleansed Elis of a plague and wiped away the waves of filth which the earth released when Augeas was tyrant.”
“Ἆρ᾿ οὖν τὸ οὕτως διαιτᾶσθαι λεπτότητα μόνον ἐργάζεται τῶν αἰσθήσεων ἢ ἰσχὺν ἐπὶ τὰ μέγιστά τε καὶ θαυμασιώτατα; θεωρεῖν δ᾿ ἔξεστιν ὃ λέγω καὶ ἀπ᾿ ἄλλων μέν, οὐχ ἥκιστα δὲ κἀκ τῶν ἐν Ἐφέσῳ περὶ τὴν νόσον ἐκείνην πραχθέντων· τὸ γὰρ τοῦ λοιμοῦ εἶδος, πτωχῷ δὲ γέροντι εἴκαστο, καὶ εἶδον καὶ ἰδὼν εἷλον, οὐ παύσας νόσον, ἀλλ᾿ ἐξελών, ὅτῳ δ᾿ εὐξάμενος, δηλοῖ τὸ ἱερόν, ὃ ἐν Ἐφέσῳ ὑπὲρ τούτου ἱδρυσάμην, Ἡρακλέους μὲν γὰρ Ἀποτροπαίου ἐστί, ξυνεργὸν δ᾿ αὐτὸν εἱλόμην, ἐπειδὴ σοφός τε καὶ ἀνδρεῖος ὢν ἐκάθηρέ ποτε λοιμοῦ τὴν Ἦλιν, τὰς ἀναθυμιάσεις ἀποκλύσας, ἃς παρεῖχεν ἡ γῆ κατ᾿ Αὐγέαν τυραννεύοντα.