Rat Dog

A Rat Dog is the size of a large dog, with a rat-like face and long hairless tail. It runs and otherwise moves like a canine, and its front paws have opposable thumbs and are thus able to grasp objects. Despite the name, it is not clear if this creature is a rat, dog, or some sort of magical hybrid.   A rat dog's bite may carry disease, much like a giant rat's bite. A rat dog bite has a 5% chance of causing a disease. Anyone who suffers one or more bites that results in disease will sicken in 3d6 hours. The infected character will lose one point of Constitution per hour; after losing each point, the character is allowed a save vs. Death Ray (adjusted by their current Constitution bonus or penalty) to break the fever and end the disease; cure disease will also break the fever. Any character reduced to zero Constitution is dead.