Getting anything in the mail should be OK. But.....

If at all worried then take some precautions.
1. Mix 1/4 cup of household bleach in a quart of water.
2. Wear a N-95 rated dust mask when opening the package. Blue 'Smurff' gloves too.
3. Using paper towels, being careful not to cross contaminate . Use a fresh towel and never redip a used towel in the bleach. DAMP wipe the package down and then all the items inside the package. Use caution as bleach can ruin many items. Wipe down the surrounding areas and your hands with clean bleached towels.
4. Wipe the bleached items with clear water.

EDITED: Removed Kirkland references.