Berean Study Bible
the priest is to order the contaminated article to be washed and isolated for another seven days.

King James Bible
Then the priest shall command that they wash the thing wherein the plague is, and he shall shut it up seven days more:

American Standard Version
then the priest shall command that they wash the thing wherein the plague is, and he shall shut it up seven days more:

Darby Bible Translation
then the priest shall command that they wash the thing wherein the sore is, and he shall shut it up seven days a second time.

Douay-Rheims Bible
He shall give orders, and they shall wash that part wherein the leprosy is, and he shall shut it up other seven days.

English Revised Version
then the priest shall command that they wash the thing wherein the plague is, and he shall shut it up seven days more:

Young's Literal Translation
then hath the priest commanded, and they have washed that in which the plague is, and he hath shut it up a second seven days.