"They can, but they don’t usually survive the transformation without the aid of magic. This particular muggle, after her first transformation, was close to death, but was found by a couple taking an early morning stroll and had assumed she was mauled by some sort of animal. They called emergency services who saved her life. Coincidentally there was a wizard visiting a muggle relative at the hospital that same day and happened to have a friend who was a werewolf. He recognized some of the signs and called the aurors. From there on out she spent every moon with that wizard’s friend who could help heal her, later she found her mate and moved in with a pack permanently."