Reply: Epidemiologic studies need asymptomatic controls

Affiliations

• ¹ Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Switzerland; University of Basel, Basel, Switzerland; Institute of Medical Microbiology and Hygiene, Saarland University Medical Center, Homburg/Saar, Germany. Electronic address: soeren.becker@uks.eu.
• ² Division of Tropical and Humanitarian Medicine, Geneva University Hospitals, Geneva, Switzerland.
• ³ Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
• ⁴ Département Environnement et Santé, Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Côte d'Ivoire; Unité de Formation et de Recherche Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire.
• ⁵ Institute of Medical Microbiology and Hygiene, Saarland University Medical Center, Homburg/Saar, Germany.
• ⁶ Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Switzerland; University of Basel, Basel, Switzerland.