1 Enteric Virus Laboratory, Section of Microbiology, Virology and Biotechnology, Department of Genetics, Microbiology and Statistics, School of Biology, University of Barcelona, Barcelona, Spain.
2 Division of Viral Disease, Molecular Epidemiology and Surveillance, Centers for Disease Control and Prevention (CDC), Atlanta, GA, United States.
3 Molecular Virology Laboratory, Experimental Evolution Laboratory, Nuclear Research Centre, School of Sciences, University of la República, Institute Pasteur, Montevideo, Uruguay.