Rat lung worm or angiostrongylus catonensis is a parasite that mainly lives in rodents such as rats and can infect garden snails and slugs that come into contact with infected rat faeces.
People can be infected when handling or eating snails.Most have no symptoms. Others may have only mild, short lived symptoms. Rarely, rat lung worm causes eosinophilic meningoencephalitis. Wash hand thoroughly!