Key Points

• In Week 39, virological and hospital indicators in Île-de-France continued to decline, indicating a decrease in SARS-CoV-2 circulation. However, circulation remained high in the region compared to other metropolitan areas. The situation requires close monitoring in light of the start of the school year, the reduction in teleworking, falling temperatures, the widespread circulation of the Delta variant, declining public adherence to preventive measures, and still-incomplete vaccination coverage, the progress of which appears to be slowing.

• In Île-de-France, the regional incidence rate for week 39 continued to decline for the seventh consecutive week, reaching 63 cases per 100,000 inhabitants. The testing rate remained stable in the region, though it decreased among those aged 30–44 and increased among children under 15. The positivity rate decreased among children under 15, while it stabilized in other age groups.

• In Week 39, the proportion of primary care visits for “suspected COVID-19” decreased among SOS Médecins clinics. At the hospital level, the number of new hospitalizations, the number of new admissions to intensive care, and the number of reported deaths in hospitals among COVID-19 patients all decreased, confirming the improvement in the hospital situation.

• As of October 3, 74.2% of the Île-de-France population of all ages had received at least one vaccine dose, and 71.1% were fully vaccinated. The increase in vaccination coverage with at least one dose remained low across all age groups.

• Against a backdrop of significant viral circulation, widespread transmission of the Delta variant, and falling temperatures, vaccination of all eligible individuals—particularly those in contact with vulnerable people—must be strongly encouraged with the goal of achieving a sufficient level of herd immunity as quickly as possible and avoiding further strain on hospitals. Alongside vaccination, it is also essential to maintain a high level of adherence to preventive measures, particularly the observance of protective measures, limiting risky contacts, and self-isolation in the event of symptoms, a confirmed infection, or contact with a confirmed case.