Surveillance and outbreak report Interconnected clusters of invasive meningococcal disease due to Neisseria meningitidis serogroup C ST- 11 (cc11), involving bisexuals and men who have sex with men, with discos and gay-venues hotspots of transmission, Tuscany, Italy, 2015 to 2016 Alessandro Miglietta1,2,3, Cecilia Fazio2,4, Arianna Neri2,4, Patrizio Pezzotti², Francesco Innocenti¹, Chiara Azzari⁵, Gian Maria Rossolini⁶, Maria Moriondo⁵, Francesco Nieddu⁵, Stefania Iannazzo⁷, Fortunato D’Ancona2,7, Francesco Paolo Maraglino⁷, Raniero Guerra⁷, Giovanni Rezza², Fabio Voller¹, Paola Stefanelli² 1. Regional Health Agency of Tuscany, Epidemiologic Observatory, Florence, Italy 2. Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy 3. Units of Epidemiology and Preventive Medicine, Central Tuscany Health Authority, Florence, Italy 4. These authors contributed equally to this work 5. Laboratory of Immunology and Infectious Diseases, Anna Meyer Children’s University Hospital, University of Florence, Florence, Italy. 6. Department of Experimental and Clinical Medicine, University of Florence, and Clinical Microbiology and Virology Unit, Florence Careggi University Hospital, Florence, Italy 7. Ministry of Health, Directorate-General of health prevention, Rome, Italy Correspondence: Paola Stefanelli (
[email protected]) Citation style for this article: Miglietta Alessandro, Fazio Cecilia, Neri Arianna, Pezzotti Patrizio, Innocenti Francesco, Azzari Chiara, Rossolini Gian Maria, Moriondo Maria, Nieddu Francesco, Iannazzo Stefania, D’Ancona Fortunato, Maraglino Francesco Paolo, Guerra Raniero, Rezza Giovanni, Voller Fabio, Stefanelli Paola. Interconnected clusters of invasive meningococcal disease due to Neisseria meningitidis serogroup C ST-11 (cc11), involving bisexuals and men who have sex with men, with discos and gay- venues hotspots of transmission, Tuscany, Italy, 2015 to 2016. Euro Surveill.