Key Points

COVID-19

• Regional epidemic activity is on the rise again in week 51, particularly in the southern part of the region (Oise, southern Aisne, and southern Somme)

• Among those tested who reported symptoms, one in four (23.9%) tested positive for SARS-CoV-2

• Strong and steady increase in cases among young adults (ages 20–39), while a decrease is observed among those under 15 due to the closure of schools

• New hospitalizations (including critical care) remain at a high level, but the number of new hospital admissions has stabilized

• The Omicron variant’s target mutation was detected in 45.9% of tests screened for these mutations

• More than 40% of the region’s population aged 12 and older has received a booster dose

Bronchiolitis

• Epidemic activity is declining but remains at a high level

Influenza and influenza-like illnesses

• Transition to the pre-epidemic phase

• Increased healthcare utilization for influenza-like illnesses and detection of the first severe cases admitted to intensive care

• Increased detection of influenza viruses (primarily type A) isolated from hospitalized patients

Gastroenteritis

• Stabilization of epidemic activity across all age groups and among children under 5