ParagonimiasisParagonimusLung Diseases, ParasiticParagonimus westermaniLung DiseasesPraziquantelShellfishLung Diseases, InterstitialAntibodies, HelminthLungAnthelminticsLaosPleural EffusionBrachyuraFood ParasitologyMissouriSuburban HealthBithionolCentral Nervous System HelminthiasisAstacoideaLung Diseases, ObstructiveEosinophiliaParasite Egg CountAntigens, HelminthMetacercariaeSputumFasciolaClonorchiasisCameroon