New COVID-19 vaccination recommendations in Spain: Optimizing for next seasons Pilar Arrazola; María Fernández Prada; Ángel Gil; José Gómez Rial; Cristina Hernán; Rosario Menéndez; Antoni Trilla; Raúl Ortiz de Lejarazu;

Pediatric mucormycosis associated with COVID-19: A systematic review of clinical cases Laura Batista Amaral; Fabianne Carlesse; Luana Rossato;

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;