Table of Contents
- Overview
- Symptoms
- Treatment
- Prevention
- Images
Hymenolepiasis is infestation by one of two species of
Alternative Names
Dwarf tapeworm infection; Rat tapeworm; Tapeworm - infection
Causes, incidence, and risk factors
Hymenolepis live in warm climates and are common in the southern United States. The eggs of these worms are ingested by insects.
Humans and other animals become infected when they intentionally or unintentionally eat material contaminated by insects. In an infected person, it is possible for the worm's entire life-cycle to be completed in the bowel, so infection can persist for years.
Hymenolepis nana infections are much more common than Hymenolepis diminuta infections in humans. These infections were previously common in the southeastern United States, and have been described in crowded environments and individuals confined to institutions. However, the disease occurs throughout the world.
Images
Review Date: 08/28/2009
Reviewed By: Linda Vorvick, MD, Medical Director, MEDEX Northwest Division of
Physician Assistant Studies, University of Washington School of
Medicine; Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine,
Harvard Medical School, Assistant in Medicine, Division of
Infectious Disease, Department of Medicine, Massachusetts General
Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director,
A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
