Key points

• Pre-epidemic activity in the Grand Est region

• Activity is increasing, but remains below the epidemic threshold, for acute diarrhea visits in primary care

• Hospital emergency department activity for acute diarrhea is stable, lower than during the same period in the 2016-2017 season

• Activity of SOS Médecins associations for acute diarrhea is slightly increasing, but lower than during the 2016-2017 season at the same time