Key Points

• According to data from the Unified Influenza Network, the influenza epidemic threshold has been exceeded since week 05.

• In the Alsace region, an increase in influenza-related activity has been observed, according to data from the region’s SOS Médecins associations as well as from the Unified Influenza Network.

• At the national and regional levels, the influenza A virus remains dominant.

• Bronchiolitis activity is trending downward in Alsace, and the number of positive RSV test results is decreasing, according to data from the HUS virology laboratory.

• Gastroenteritis activity remains steady in Alsace.

• According to data from the HUS virology laboratory, rotavirus and norovirus continue to co-circulate. Regarding noroviruses, the National Reference Center (CNR) for Enteric Viruses reports that the predominant genotype remains NV GGII4 variant Sidney 2012, but that NV GGII6 appears to be identified more frequently this season than in previous winters.