Angiostrongylus cantonensis, the rat lungworm, is the principal cause of eo
sinophilic meningitis worldwide, and the increase in world travel and shipb
orne dispersal of infected rat vectors has extended this parasite to region
s outside of its traditional geographic boundaries. We report a case of eos
inophilic meningitis due to A. cantonensis in a patient who recently return
ed from a trip in the Pacific.