SOS Médecins' activity remained stable nationwide during the period under review, at a level slightly higher than last year's figures for the same period; however, a slight increase was observed among those aged 75 and older (+16%). Influenza and gastroenteritis were the main diagnoses reported across all age groups during the period.The influenza indicator (diagnosis) is on the rise (+54%) across all age groups, particularly among those aged 75 and older (+94% compared to the previous week). Nationally and across regions, influenza accounts for 9% of total SOS Médecins activity. Activity related to bronchiolitis is stable over the period, comparable to previous seasons (2010–2011, 2009–2010). The measles indicator is stable over the period.The gastroenteritis indicator is stable across all age groups (6% of activity), at a level comparable to previous seasons for the same period. The death indicator is comparable to last year for the same period.