Key Points

COVID-19

• Increase in virological indicators after several weeks of decline.

• The BA.2 sublineage is predominant, accounting for 86.2% of interpretable sequences in the Flash S21 survey. Increase in the proportion of samples carrying the L452 (C1) mutation (20.6% in S22 vs. 7.4% in S21). Increase in the number of COVID-19 cases in ESMS.

• COVIPREV Update: Continued decline in the routine wearing of masks in public and an increase in anxiety disorders and suicidal thoughts.

Acute gastroenteritis

• In week 22, activity related to gastroenteritis was on the rise in hospital emergency departments.

• Oscour®: moderate activity level: in week 22, the number of hospital emergency department visits for gastroenteritis (n = 191) was up compared to the previous week (n = 162) and accounted for 1.5% of coded visits (1.3% in week 21). Activity related to gastroenteritis was higher than that observed in 2021 and 2020 during the same period. Among children under 5 years of age, activity related to gastroenteritis was up compared to the previous week (6.1% vs. 4.5% in week 21).

• In Week 22, the hospitalization rate was 14.7% (15.1% among children under 5 years of age), down from the previous week (20.9% in Week 21), and gastroenteritis accounted for 1.2% of the total number of hospitalizations (1.6% in Week 21).

Heat Wave and High Temperatures

• In Week 22, in the Centre-Val de Loire region, the number of heat-related emergency department visits (n = 18) was down compared to Week 21 (n = 21) and accounted for 0.1% of all visits.

Monkeypox

• 1 confirmed case in Eure-et-Loir.