1. Epidemiology and virology of SARS-CoV-2Char Leung2. COVID-19 and pediatricsdphylogeny, pathology, and pathogenesis of SARS-CoV-2Eduard Matkovic and Jessica Gulliver3. Signs and symptoms commonly seen in COVID-19 in newborns, children, and adolescents and pediatric subjectsGiuseppina Malcangi, Alessio Danilo Inchingolo, Angelo Michele Inchingolo, Luigi Santacroce, Grazia Marinelli, Antonio Mancini, Luigi Vimercati, Maria Elena Maggiore, Maria Teresa D'Oria, Damiano Nemore, Arnaldo Scardapane, Biagio Rapone, Maria Franca Coscia, Ioana Roxana Bordea, Edit Xhajanka, Antonio Scarano, Marco Farronato, Gianluca Martino Tartaglia, Delia Giovanniello, Ludovica Nucci, Rosario Serpico, Mariantonietta Francavilla, Loredana Capozzi, Antonio Parisi, Marina Di Domenico, Felice Lorusso, Maria Contaldo, Francesco Inchingolo and Gianna Dipalma4. Complications: MISC and other complicationsLilia M. Sierra-Galan and Roberto M. Richheimer-Wohlmuth5. Diagnosis of pediatric COVID-19Joseph L. Mathew and Ketan Kumar6. Management of acute COVID-19 in the pediatric population and role of antimicrobial therapyH.E. Groves, U. Allen and S.K. Morris7. COVID-19 vaccinations for children and adolescentsKatrina Nicolopoulos, Ketaki Sharma, Lucy Deng and Archana Koirala8. Long COVID in childrenJoseph L. Mathew and Kamal Kumar Singhal