Is It Safe to Stay in a House With Sewage Backup? What Depends on Who Lives There and How Far It Spread

Is it safe to stay in a house with sewage backup? Health departments do not give a single yes or no, and for good reason: the answer depends on who lives there, how much sewage came in, and how far it spread. What they do offer is a set of factors that can be weighed.
This post covers staying put. The steps a household takes first are on the Pittsburgh page for backups.