Ethics approval and consent to participate
throat
All methods in the study were performed in accordance with the Declaration of Helsinki. Informed consent was obtained from all subjects and/or their legal guardian(s) concerning objectives and performance of the study, including the study throat swab. The study received ethical approval by the Ethics Committee of the Medical Faculty of the Christian-Albrechts-University of Kiel on 28.09.2010 (file reference: A 152/10).