Yahweh continues telling Moses and Aaron what the people must do to avoid infection.

## that person ##

This refers to the person with the infected fluid.

## until evening ##

"until sunset"

## Whomever he who has such a flow ##

AT: "Whomever the person with the infected flow touches"

## the person who was touched ##

AT: "the person whom he touched" (See: [[rc://en/ta/man/translate/figs-activepassive]])