I always advise to double check with your vet, but from what I've read and seen as a rule of thumb is isolate for a minimum of 3 weeks after recovery, some sources say contagious for up to 2 months after recovery. ASPCA's shelter medicine guidelines are 2 weeks of quarantine. Just give a quick call to the vet and ask.
Also, I wouldn't jump right into using a dog park for socializing. It will probably overwhelm her and may set her back actually, since she hasn't had any chance of meeting dogs yet. Try setting up one-on-one play time with an adult dog that is used to puppies (needs to be tolerant, yet still playful)
Also, I wouldn't jump right into using a dog park for socializing. It will probably overwhelm her and may set her back actually, since she hasn't had any chance of meeting dogs yet. Try setting up one-on-one play time with an adult dog that is used to puppies (needs to be tolerant, yet still playful)