Executive summary: Clinical practice guidelines on the management of resistant tuberculosis of the Spanish Society of Pulmonology and Thoracic Surgery (SEPAR) and the Spanish Society of Infectious Diseases and Clinical Microbiology (SEIMC) Adrian Sanchez-Montalva; José Antonio Caminero; Mª Remedio Guna; Teresa Rodrígo Sanz; Ramón Rabuñal; Joan Pau Millet; José Antonio Gullón-Blanco; Luis Anibarro; Guillermo Perez-Mendoza; Juan Francisco Medina; Verónica González-Galán; Eva Tabernero;

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;

First importations of SARS-CoV-2 P.1 and P.2 variants from Brazil to Spain and early community transmission Pedro J. Sola Campoy; Sergio Buenestado-Serrano; Laura Pérez-Lago; Cristina Rodriguez-Grande; Pilar Catalán; Cristina Andrés-Zayas; Luis Alcalá; Carmen Losada; Carla Rico-Luna; Patricia Muñoz; Darío García de Viedma;