1 Department of Biomedical Sciences, Clinical Microbiology and Virology Unit, University of Cagliari, Policlinico Monserrato, S.S. 554, Bivio per Sestu, 09042 Monserrato, Cagliari, Italy.
2 Department of Viroscience, Erasmus Medical Center, Room Ee 1714a's Gravendijkwal 230, 3015 CA Rotterdam, The Netherlands.
3 UMR190, Emergence des Pathologies Virales Aix-Marseille Universite, Institut de Recherche pour le Développement, Ecole des Hautes Etudes en Santé Publique, Unité des Virus Emergents, Faculté de Médecine de Marseille, 27 Boulevard Jean Moulin, 13005 Marseille Cedex 05, France.
4 Virology Unit, Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Via Tronto 10/a, 60020 Torrette di Ancona, Ancona, Italy.
5 Unit of Clinical Microbiology, The Greater Romagna Area-Hub Laboratory, 60 Piazza della Liberazione, 47522 Pievesestina (FC), Italy.