
This can be very dangerous, as they can pass on a parasite. The lay term that I have herd used is french lungworm.
An Elkhound bitch puppy I bred had been spayed, and owners were watching her weight carefully in case it went up, and she was loosing weight and was very lethargic and excesrsise intolerant. Turned out she had picked up lungworm from the snails she was eating and needed a course of Panacur, and has to have it every month, and slowly is reagaining her health.