Giant African snails are menacing Florida 's Miami-Dade County , say agriculture officials . They can grow as big as rats and could carry a potentially deadly parasite . Score: Agriculture Department spokeswoman Denise Feiber says the menacing creatures also carry a human parasite called rat lungworm , which is a form of meningitis and potentially deadly . 6 Experts warn against handling them and suggest calling local agriculture agency .
Giant African snails are menacing Florida 's Miami-Dade County , say agriculture officials . They can grow as big as rats and could carry a potentially deadly parasite . Score: 6 Experts warn against handling them and suggest calling local agriculture agency .