Angiostrongylus cantonensisAngiostrongylusStrongylida InfectionsMeningitisMetastrongyloideaSnailsEosinophiliaFood ParasitologyMeningoencephalitisGastropodaCentral Nervous System HelminthiasisAnimal DistributionDNA, HelminthGnathostomaNematode InfectionsDisease VectorsHawaiiStrongyloideaJamaicaLarvaLife Cycle StagesAntibodies, HelminthAntigens, HelminthThailand