Creeping eruption is an infection with dog or cat hookworm larvae.
Cutaneous larvae migrans; Ancylostoma braziliense
Causes, incidence, and risk factors
Hookworm eggs are found in the stool of infected dogs and cats. When the eggs hatch, the larvae infest any contaminated soil and vegetation.
When you come into contact with this infested soil, the larvae can burrow into your skin. They cause an intense inflammatory response that leads to a rash and severe itching.
Creeping eruption is more common in countries with warm climates. In the U.S., the southeastern states have the highest rates of infection. The main risk factor for this disease is contact with damp, sandy soil that has been contaminated with infected cat or dog feces. More children than adults become infected.
Nash TE. Visceral larvae migrans and other unusual helminth infections. In: Mandell GL, Bennett JE, Dolan R, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 7th ed. Orlando, FL: Saunders Elsevier;2009:chap 291.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, 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.