Twenty (5%) hospitals reported 29 patients. The reporting hospitals were situated in 9 (56%) of the 16 federal states of Germany. Of the 29 reports, 9 (31%) had to be excluded from the analysis: for 3 patients, the hospitals did not provide information on the inclusion criteria, 3 patients had no laboratory-confirmed influenza diagnosis, 1 patient was older than 16 years of age, and 2 patients had been reported twice. Twelve (60%) of the 20 children were male. The median age was 7.5 years (IQR 0.5-12.75, range < 1 month to 15 years of age); 9 (45%) children were < 5 years of age, including 5 (25%) children < 1 year of age.