Key points

Chikungunya, dengue, Zika

• 179 cases of arboviral diseases—156 confirmed cases and 23 probable cases—were identified in Île-de-France, including 171 cases of dengue, 2 cases of chikungunya, and 6 cases of Zika. All of these cases were imported (Table 1 and Figure 2). Twenty-nine hospitalizations for dengue and one for chikungunya were reported. No deaths were reported.

• The dengue cases were imported from the Caribbean (100), Latin America (31), Asia (28), and sub-Saharan Africa (12); the chikungunya cases from Mali and Senegal; and the 6 Zika cases from Thailand (Figure 3). Among the cases, 158 (89%) were potentially viremic in Île-de-France, and 76 (42.5%) resided in municipalities in the Île-de-France region colonized by the “tiger mosquito” (Aedes albopictus).

Extreme heat, heat wave

• In Week 35, the Île-de-France region was at the green alert level. Heatwave indicators decreased in emergency department visits (OSCOUR) and SOS Médecins calls compared to Week 34 and remained at low levels.

• The Île-de-France region is at yellow alert in week 35 as of the publication date of this epidemiological update.

COVID-19

• Emergency room visits related to COVID-19 are stable compared to previous weeks.

• SOS Médecins calls increased slightly compared to the previous two weeks.

• The number of visits followed by hospitalizations remains stable in Week 35 (124 hospitalizations) compared to the previous week (122 hospitalizations).