Helminth (not to be confused with Hellmouth, where Sunnydale High is) includes A. cantonensis and A. costaricensis.
In SE Asia associated with eating under cooked crabs, shellfish and snails. And raw, yes raw, frogs (PubMed).
There have been a cases in both France and Texas
A. cantonensis: eosinophilic meningitis. A big problem in Vietnam.
A. costaricensis: eosinophilic gastroenteritis.