Comparative severity of COVID-19 cases caused by Alpha, Delta or Omicron SARS-CoV-2 variants and its association with vaccination Elena Varea-Jiménez; Esteban Aznar Cano; Lorena Vega-Piris; Elena Vanessa Martínez Sánchez; Clara Mazagatos; Lucía García San Miguel Rodríguez-Alarcón; Inmaculada Casas; María José Sierra Moros; Maria Iglesias-Caballero; Sonia Vazquez-Morón; Amparo Larrauri; Susana Monge;

Indirect impact of PCV10 children vaccination on the serotype distribution and antimicrobial resistance of Streptococcus pneumoniae causing invasive disease in adults over 50 in Colombia, 2005¿2019: Observational analysis Carolina Duarte; Clara Inés Agudelo; Carlos Castañeda-Orjuela; Jaime Moreno; Olga Marina Sanabria; Adriana Bautista; Elizabeth Castañeda;

Executive summary. Diagnosis, treatment and prophylaxis of influenza virus infection. Consensus statement of the Spanish Society of Infectious Diseases and Clinical Microbiology (SEIMC), the Spanish Society of Pediatric Infectious Diseases (SEIP), the Spanish Association of Vaccinology (AEV), the Spanish Society of Family and Community Medicine (SEMFYC) and the Spanish Society of Preventive Medicine, Public Health and Health Management (SEMPSPGS) Francisco López-Medrano; Santiago Alfayate; Jordi Carratalà; Judith Chamorro-Camazón; Elisa Cordero; Marta Cruz-Cañete; María Fernández-Prada; Manuel García-Cenoz; María Ángeles Marcos; Santiago Melón; Nemesio Moreno-Millán; María Ángeles Onieva-García; Raúl Ortiz de Lejarazu; Jaime Jesús Pérez-Martín; Juan Rodríguez-García; Germán Schwarz-Chavarri; Alfredo Tagarro-García; Diego van Esso-Arbolave; Diego Viasus; Tomàs Pumarola;