First confirmation of importation and transmission in Spain of the newly identified SARS-CoV-2 B.1.1.7 variant Sergio Buenestado-Serrano; Raúl Recio; Pedro J. Sola Campoy; Pilar Catalán; M. Dolores Folgueira; Jennifer Villa; Irene Muñoz Gallego; Víctor Manuel de la Cueva; M. Angeles Meléndez; Cristina Andrés Zayas; Juan E. Losa-García; M. José Goyanes; Arturo Fraile Torres; Andres Von Wermitz; Isabel Fradejas-Villajos; Carmen del Arco; Carolina Campelo-Gutiérrez; Sara González Bodi; Daniel López-Wolf; Higinio Iglesias-Franco; Laura Pérez-Lago; Araceli Arce Arnaez; Elena Rodriguez Baena; María Ordobas Gavin; Patricia Muñoz; Rafael Delgado; Laura Cardeñoso; Esther Viedma; Darío García de Viedma;

Etiology and outcome of febrile children coming from the tropics David Torres-Fernandez; Luis Manuel Prieto Tato; Ana Perez-Ayala; Cinta Moraleda; Elisa Fernandez Cooke; Daniel Blazquez-Gamero; Pablo Rojo; Alfredo Perez Rivilla; Cristina Epalza;

Association between biomass formation and the prognosis of infective endocarditis due to Staphylococcus aureus Nuria Fernández-Hidalgo; Jana Basas; Ester Viedma; Aida Ribera; Nieves Larrosa; Dafne Pérez-Montarelo; Fernando Chaves; Joan Gavaldà; Benito Almirante;