Figure 1. Antibiotic Classes Prescribed in Pediatric and Adult Outpatients With Acute Respiratory Infections in the 2013-2014 and 2014-2015 Influenza Seasons in the US Influenza Vaccine Effectiveness Network.

Acute respiratory infections are defined by cough with 7 days’ duration or less. Pediatric indicates patients aged 6 months to younger than 18 years.

^aIncludes first-generation cephalosporins and sulfonamides.