1 Genomic Research Laboratory, Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland.
2 Swiss National Centre for Meningococci (www.meningo.ch), Division of Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland.
3 Swiss Federal Office of Public Health, Epidemiological Evaluation and Surveillance Section, Bern, Switzerland.
4 Genomic Research Laboratory, Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland; Swiss National Centre for Meningococci (www.meningo.ch), Division of Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland.. Electronic address: jacques.schrenzel@hcuge.ch.