far, with mild-moderate disease, and only two of them required oxygen therapy, in line with general pediatric population data. 3 In conclusion, the prevalence of COVID-19 infection among children with cancer in Madrid is 1.3%. Although this patient population is managed as high risk, the clinical features are milder and the prognosis better than in the adult population.

An inhospital exercise program for pediatric cancer patients with solid tumors undergoing neoadjuvant treatment increases muscle strength despite the aggressiveness of such therapy.