Taenia Saginata (Beef Tapeworm) Infection By Chelsea Marie, PhD, University of Virginia; William A Petri, Jr, MD, PhD, University of Virginia School of Medicine Reviewed / Revised Dec 2021 | Modified Sep 2022 View Patient Education Symptoms and Signs Diagnosis Treatment Infection with the beef tapeworm, Taenia saginata, may cause mild gastrointestinal upset or passage of a motile segment in the stool.