ParagonimiasisParagonimusLung Diseases, ParasiticParagonimus westermaniLung DiseasesPraziquantelShellfishLung Diseases, InterstitialAntibodies, HelminthLungAnthelminticsLaosPleural EffusionBrachyuraMissouriFood ParasitologySuburban HealthBithionolCentral Nervous System HelminthiasisAstacoideaLung Diseases, ObstructiveParasite Egg CountEosinophiliaAntigens, HelminthMetacercariaeSputumFasciolaClonorchiasisCameroon