Unit for rent...but tenant won't allow access because of covid19

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I have a unit opening on May 1 and we have just listed it for rent. The tenant would not allow us in to take pictures or videos and sent me a message that said she does not want anyone in her unit before she moves out because of fear of contracting the virus. I completely understand her position, but obviously I'd like to rent the unit (and it's pretty difficult to rent without the person seeing it via video or an in-person walk-thru). These are obviously uncharted waters, and I want to be respectful to my tenants (and keep them safe) while also getting my unit rented. 

Anyone run into this problem yet? Any tips or suggestions? Comments like, "screw your tenant, you can enter with 24 hours notice," are not what I'm looking for. Looking to find some middle ground with tenants. Thanks!