Humans accidentally get infected by eating raw vegetables containing or contaminated by infected slugs or snails, or by eating undercooked creatures that eat slugs or snails, such as land crabs, freshwater prawns, or frogs. In the woman’s case, doctors suspected she got infected from eating raw seafood and salads on a recent trip to Hawaii, where the parasite is a known threat. Luckily, the woman was treated for the infection and made a full recovery.