The furthest building is the infectious diseases department for the grifix with highly contagious infections, like pneumonia, intestinal infections, etc. It has two floors: one is for adults, second is for kids.

Healing of Infections Patient Wards (don't have to read, only if you are curious):

The wards in the Healing of Infections Underguild are arranged differently from other Healing Houses. Here the wards are isolated and they are called boxes. Before entering the ward itself, the doctors and nurses must disinfect their paws in a special room.

There are special doors for serving food, the nurse serves it through this door and leaves it on the table, when the patients eat, they leave the dishes on the same table, where the nurse can pick it up.

Each box has an exit to the outside and another small room and also a window for observing patients without entering the box.

This is all necessary to minimize contacts between staff and patients as well as between patients themselves. 

Those entering the boxes must wear protective clothing, mask and gloves.