before bring home should go vet for complete checkup first, you don't know what disease it's carrying. if there's kids around in the house, the virus could spread to the kids.
you don't wanna risk your kids safety, health & wellbeing of kids is always higher priority than dogs. this is one thing which should be made clear.

after checkup by the vet, get advise from them on the environment suitable for the dog in your house. the dogs would be stressful too if the environment is not right for them.