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Summary of the 2014–2015 Flu SeasonIn the Epidemiological Bulletin of December 23, 2014, it was noted that strains of the A(H3N2) virus, identified by the U.S. and European Centers for Disease Control (CDC), differed from the H3N2 Texas vaccine strain included in the 2014-2015 vaccine. Since the H3N2 virus particularly affects the elderly, their vaccination—even with a less effective vaccine—and the implementation of preventive measures in elderly care facilities were therefore particularly important. According to the Sentinelles surveillance network, the nationwide epidemic lasted 9 weeks (January 12 to March 15, 2015, weeks 03 to 11), and an estimated 2.8 million people consulted their primary care physician in mainland France for flu-like symptoms (95% CI [2.79, 2.90]). During this same period, an excess mortality from all causes of approximately 16% (12,400 deaths) was observed: the proportion attributable to influenza was not quantified.During this period, in Bourgogne-Franche-Comté, between 12,000 and 43,000 residents of Burgundy and between 18,000 and 47,000 residents of Franche-Comté consulted their general practitioner for influenza. These figures are imprecise since, in both Burgundy and Franche-Comté, only 3 to 7 physicians reported their weekly number of influenza cases during weeks 03 to 11.SOS Médecins activity exceeded the epidemic threshold for 13 weeks (from December 29, 2014, to March 29, 2015), with a peak of 30% of flu cases among diagnoses (as during the winter of 2012–2013, when H3N2 was also dominant) in week 7 (February 9–15, 2015). These activity peaks were also observed during weeks 6 through 9 (February 2–March 1, 2015) in most emergency departments in Burgundy and Franche-Comté, during which more than 1% of diagnosed patients had influenza.As part of the surveillance of severe influenza cases hospitalized in intensive care (Table 3), 68 cases have been reported in Burgundy and 33 in Franche-Comté since November 1, 2014, including 3 probable cases (no biological confirmation). The majority involved influenza A viruses (n=84) and 14 involved influenza B viruses. The total number of cases in intensive care this season is the highest since surveillance began in 2009. The summary of acute respiratory infections and acute gastroenteritis in long-term care facilities is included in this EP. Today’s epidemiological update concludes this season’s winter surveillance.