Key Points

COVID-19

In the Grand Est region, the number of new cases decreased in week 33 of 2021 (7,737 compared to 8,316 in week 32 of 2021), as did the number of people tested (360,200 in week 33 of 2021 compared to 363,441 in week 32 of 2021). The incidence rate also fell to 140.4 new cases per 100,000 inhabitants, and still exceeds the threshold for active viral circulation (set at 50 per 100,000 inhabitants). The positivity rate, meanwhile, remained stable (2.1% compared to 2.3% in week 32 of 2021).

Viral circulation is on the rise among those aged 0–9 and those over 70, but is declining in all other age groups: this decrease is most pronounced among those aged 20–29 (-14%). Incidence rates range from 45.6 new cases per 100,000 inhabitants among those aged 80 and older to 260.7 new cases per 100,000 inhabitants among those aged 20–29.

Viral circulation is declining in five of the region’s ten departments: Marne, Haute-Marne, Meuse, Bas-Rhin, and Vosges. It remains stable in Ardennes, Aube, Meurthe-et-Moselle, Moselle, and Haut-Rhin. In week 33 of 2021, incidence rates all exceeded the threshold for active viral circulation of 50 new cases per 100,000 inhabitants. Haut-Rhin, Moselle, and Bas-Rhin have the highest incidence rates, with 223.7, 176.2, and 140.0 new cases per 100,000 inhabitants, respectively.

Chikungunya, dengue, Zika

In the Grand Est region, Aedes albopictus, commonly known as the “tiger mosquito,” has been established in Bas-Rhin since 2015 and in Haut-Rhin since 2016. From May 1 to August 26, 2021, five imported cases of dengue were reported in the Grand Est region, including two residents of the Bas-Rhin and one in the Haut-Rhin.