Question about uncleanness (Hag 2:13-2:13)

“Then Haggai said.

‘If one who is unclean,

By contact with a dead body,

Touches any of these,

Does it become unclean?’

The priests answered.

‘Yes,

It becomes unclean.’”

Now Haggai asked the opposite question.  How does anyone become unclean, the opposite of holy?  Normally, people became unclean by touching a dead body.  What would happen if this unclean person, who had touched the dead body, touched the bread, the stew, the wine, the oil, or any other kind of food.  Would these food products become unclean?  The answer of the priests was the opposite of the question about holiness, yes.  Instead of no impact, the uncleanness would spread, so that all these things would be unclean, like a contagion.