Paragonimiasis (Oriental Lung Fluke Infection; Endemic Hemoptysis) By Chelsea Marie, PhD, University of Virginia; William A Petri, Jr, MD, PhD, University of Virginia School of Medicine Reviewed / Revised Aug 2021 | Modified Sep 2022 View Patient Education Pathophysiology Symptoms and Signs Diagnosis Treatment Topic Resources Paragonimus westermani... Paragonimiasis is infection with the lung fluke Paragonimus westermani and related species.