Epidemiological indicators show that the 2014–2015 flu season peaked during weeks 6 and 7 of 2015 in Brittany. These indicators continue to decline in week 09. As in previous weeks, the mortality recorded by civil registry offices, for all ages and among those aged 75 and older, exceeds the threshold values. Since early 2015, initial estimates of all-cause winter mortality in the region show that it is approximately 15% higher than expected mortality for all ages and 16% higher for those aged 85 and older (expected mortality calculated based on the previous 8 years). These estimates should be interpreted with caution, as the current episode is not yet over and the data are not yet consolidated due to the usual delays in data transmission.