Visiting newborn during virus

My baby is due this week. The hospital is only allowing my husband to visit which is understandable during the Coronavirus outbreak. What do you guys think about grandparents coming to visit at home? It is their first grandchild and we have been awaiting his arrival for so long! They have no symptoms or any sickness, and have not been exposed to Anyone that we know of. Do you think we should wait a few weeks or a few days to allow them to visit?