Pneumonia was diagnosed for 234 (77%) of the 305 eligible patients, and ILI was diagnosed for 71 (24%). For patients with pneumonia, median age was 2.0 years (range 0.1-68 years) and 55% were male; for those with ILI, median age was 1.4 years (range 0.2-10 years) and 54% were male.