Colleagues,
I know you're receiving lots of guidance  but I encourage you to take a look at the first couple of pages especially if you have not yet developed an emergency operations plan.  This is very readable resource.  See Links at the end  there is also a place to subscribe to updates.

https://www.cdc.gov/coronavirus/2019-ncov/community/homeless-shelters/plan-prepare-respond.html 

Maureen