SOS Médecins' activity has increased slightly nationwide over the past week, remaining at a level comparable to that of the same period last year. There has been a sharp increase in flu diagnoses nationwide and across regions (+82%) for all age groups.Activity related to bronchiolitis has remained stable over the past week. The measles indicator is stable. The gastroenteritis indicator has stabilized at a level comparable to the 2010–2011 season and accounts for 9% of SOS Médecins’ activity. The death indicator is comparable to the same period last year. Gastroenteritis, nasopharyngitis, and influenza are the main diagnoses reported (across all age groups) for the observed period.