Division of Infectious Diseases and Hospital Epidemiology, University Children's Hospital Zurich, Zurich, Switzerland; Correspondence to: Patrick M. Meyer Sauteur, MD, PhD, Division of Infectious Diseases and Hospital Epidemiology, University Children's Hospital Zurich, Steinwiesstrasse 75, CH-8032 Zurich, Switzerland.
Martin Theiler, MD
Pediatric Skin Center, Department of Dermatology, University Children's Hospital Zurich, Zurich, Switzerland