The dynamic of SARS-CoV-2 and other respiratory virus in children and adolescents is relevant in clinical context. There are few studies comparing clinical course in COVID-19 (coronavirus disease) and other respiratory virus in pediatric patients. The aim of this study was to compare demographics and clinical features, exams abnormalities, and outcomes in SARS-CoV-2 and other respiratory virus infections in a pediatric population. This was a single-center prospective study, between April 17 to September 30, 2020. We evaluated 76 pediatric COVID-19 and 157 other respiratory virus infections. Rhinovirus occurred in 132/157(84%). COVID-19 patients were significantly older, had more fever (69% versus 50%; p=0.01), pneumonia (22% versus 5%; p<0.01), myalgia (29% versus 8%; p=0.001), headache (31% versus 14%; p=0.01) and worse outcomes than those with other respiratory virus infections. Our data emphasizes differences in clinical presentation and outcomes between pediatric COVID-19 and rhinovirus infections.