Map Comparison

Flu Seasons Compared

US average of the share of office visits with diagnosis of influenza-like illness (ILI)

Percentage of pediatric visits with an influenza-like illness (ILI) diagnosis

Percentage of office visits in which a flu vaccine was administered

Source: athenahealth
Sample: Based on over 1.4 million visits per week to practices on the athenahealth network that have been live for a full year. Weeks correspond with the CDC’s Morbidity and Mortality Weekly Report (MMWR). Influenza activity typically begins to increase in October and can last through May, though the exact start and duration may vary.