Trichinosis (Trichiniasis; Trichinellosis) By Chelsea Marie, PhD, University of Virginia; William A Petri, Jr, MD, PhD, University of Virginia School of Medicine Reviewed / Revised Sep 2022 View Patient Education Pathophysiology Symptoms and Signs Diagnosis Treatment Prevention Key Points Topic Resources Trichinella spiralis... Trichinosis is infection with Trichinella spiralis or related Trichinella species.