2 Pediatric Department, Hôpital de La Tour, Geneva, Switzerland.
3 Division of General Pediatrics, and.
4 Pediatric Platform for Clinical Research, Department of Woman, Child and Adolescent Medicine, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland.
5 Primary Care Unit, University of Geneva, Geneva, Switzerland.
6 Clinique des Grangettes, Geneva, Switzerland; and.
7 Pediatric Infectious Diseases Unit, arnaud.lhuillier@hcuge.ch.
8 Division of Infectious Diseases and Laboratory of Virology, Division of Laboratory Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland.