Hey sorry don't have any protocols to give you as we are working on making our own currently.
I just attended the Cornell Shelter Medicine Conference and would say to reach out to them by email at sheltermedicine@cornell.edu , they said they would be glad to talk to others and provide helpful resources to the specific questions you ask. The 2022 ASV guidelines state directly to do DHPP vaccines at 4 weeks of age, or whenever you get the pup which ever is earliest, and to continue with one every 2 weeks up until 20 weeks of age. I believe there are also studies that state unless you have a known reason to quarantine past 48 hours (ie. you know the shelter you pulled from has an issue) it's better for the dog to be fast-tracked to adoption.
on a side note, If anyone wants to share their protocols I'd be extremely grateful to see them as well lol.
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roy forster
Director
Happy Life Animal Rescue
NY
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