"He has some muscles issues to his fur," Harrison told InsideEdition.com. “He had no muscle mass and was unable to move around, let alone walk."
After hours of grooming, the pup was reluctant to approach his rescuers but soon warmed up to their touch.
"Lazarus doesn’t know how to be a dog,” said Harrison. “He doesn’t exactly know how to behave like a dog.”
The canine currently resides in a foster home in Virginia where he continues to receive medical care and tons of TLC.
Lazarus will be up for adoption when he regains his strength and is comfortable living with a new family.
“He is such a sweet dog,” said Harrison. “Whenever he’s ready, he’ll be adopted.”