How to sanitize interior after long-term rodent intrusion?

Idk but do not take ppe lightly! Im talking full suit respirators gloves etc when your cleaning it or gutting it. Hantavirus and other rodents diseases are nothing to play with. There was a young family local that died from cleaning out a old shed. The children got sick first they thought it was like a flu then the parents got sick. They all ended up dying. They were in there 30s and the kids was preteens. Very scary stuff.
What???
There had to be more to it than that. Maybe they ignored their symptoms, maybe they had some crazy religious "God will heal me" beliefs and never went to a doctor?