Patient’s characteristics
During the study period, 207 pediatric ALL patients in the maintenance
phase were treated at our center. Out of these, 46 patients
(22%)—with a mean age of 5.8 years and SD of 3.17—experienced 61
episodes of RV infection (7 patients had more than one episode during
maintenance therapy). Forty-six percent of the episodes occurred during
M1 while 54% during M2. Regarding the type of ALL treatment
stratification, 70% were an intermediate risk, while 28% and 2% were
in patients with high and standard risk respectively.