Ok, you did not take the bait 🙂 the suggestions above are straight from the Gemora Bava Kama 60b: “The Sages taught: If there is plague in the city, gather your feet, i.e., limit the time you spend out of the house, as it is stated in the verse: “And none of you shall go out of the opening of his house until the morning” (ישעיהו כו, כ)… and “Outside the sword will bereave, and in the chambers terror” (דברים לב, כה). Then Gemora explain we need two verses to make sure we don’t go both in the morning and at night. .. And even when there is “fear inside” (pandemic is already in the community and houses ? AAQ), still do not go outside.
Rava would close the windows of his house, as it is written: “For death is come up into our windows” (Jeremiah 9:20). (that is Rava paid attention to air propagation also AAQ).
Now Rashi on Yeshayahu rhymes with your allegoric approach: Go, my people, enter your chambers:… enter your houses of prayer and study. Another interpretation: reflect upon your behavior in the chambers of your heart. So explained Rabbi Tanchuma.
But this does not, I think, rejects the pshat of pandemic prevention. (the context of the Gemora – next line is how to act during famine – like Avraham, leave the city).
So, to summarize, there is enough support for several things: doing practical things, praying, learning, and reflecting on your behavior.