Key Points

Increased activity related to gastroenteritis in Nouvelle-Aquitaine, particularly among children under 5. In week 47 of 2021 (November 22–28, 2021):

• 518 emergency department visits for acute gastroenteritis (AGE), representing 1.9% of total hospital emergency department activity;

• Nearly two-thirds of AGE visits involved children under 5 years of age (n=333);

• Among all emergency department visits by children under 5, 10% were for AGE;

• According to virology data from the Bordeaux University Hospital, concurrent circulation of norovirus, rotavirus, and adenovirus has been observed;

• Several reports of gastroenteritis cases in schools, particularly in Charente-Maritime and Deux-Sèvres;

At the regional level, this increase in gastroenteritis activity is particularly pronounced in Charente, Charente-Maritime, Deux-Sèvres, Gironde, Haute-Vienne, and Pyrénées-Atlantiques.