Key Points

COVID-19

After 4 weeks of decline and 1 week of stabilization, the trend reversed in week 10 and the incidence rate rose again, reaching 997 cases per 100,000 people that week (762 cases per 100,000 people in week 09-22 vs. 772 cases per 100,000 people in week 08-22).

• This increase in viral circulation is observed across all age groups, and the highest incidence rate remains among adults aged 30–39 (1,311 cases per 100,000 population).

• The positivity rate is increasing in S09-22, ranging from 20% among those aged 80 and older to 33% among those aged 30–39.

• The testing rate is also increasing across all age groups.

Bronchiolitis

• SOS Médecins: Due to a data transmission issue, SOS Médecins consultations have not been interpretable since week S07-22.

• OSCOUR®: In week 10-2022, the proportion of emergency department visits related to bronchiolitis among children under 2 years of age was 3%, or 52 visits. The proportion of hospitalizations for bronchiolitis among all hospitalizations following an emergency department visit was 6.5% in week 10-2022.

• Virology data: According to results from the virology laboratories at the Nancy and Strasbourg University Hospitals in week 10-2022, the circulation of RSV (respiratory syncytial virus) is stable in the region.

Influenza

• SOS Médecins: Due to a data transmission issue, SOS Médecins consultation data has not been available since week 07.

• Oscour®: The number of emergency department visits for flu-like illness, all ages (Figure 6), increased sharply in week 10 of 2022 compared to the previous week (356 versus 146 in week 9 of 2022) and thus accounts for 1.3% of activity. Children under 15 years of age account for more than half of the visits.

• Virology data: According to data from the virology laboratories at the Nancy and Strasbourg University Hospitals, influenza virus circulation is increasing this week in the region, with almost exclusively influenza A virus.

• Intensive care units in the region: Since the start of surveillance (10/04/2021), no cases of severe influenza have been reported.

• Acute respiratory infections in long-term care facilities: Since the start of surveillance (October 4, 2021), 11 episodes of ARI (excluding COVID-19) have been reported.

Gastroenteritis

• SOS Médecins: Due to a data transmission issue, SOS Médecins consultations have not been interpretable since week 07-22.

• Oscour®: the number of emergency department visits for acute gastroenteritis (AGI), all ages (Figure 8), continues to rise in week 10-2022 (834 visits compared to 728 in week 09-2022), and accounts for 3% of the department’s activity. Children under 5 years of age still account for the majority of this activity, with 571 visits for GEA (16% of the activity share for this age group). The proportion of hospitalizations for GEA across all ages among all hospitalizations following an emergency department visit remains stable at 3%, and remains stable among children under 5 years of age (24%).

• Virology data: According to data from the virology laboratories at the Nancy and Strasbourg University Hospitals, rotavirus is by far the most common among enteric viruses and continues to circulate at high levels.