Key Points

• COVID-19: Epidemiological indicators of SARS-CoV-2 circulation in Corsica are on the rise, with, in particular, the incidence rate exceeding the threshold—a trend not fully explained by an increase in the number of tests. All of these factors point to a resurgence of viral circulation in Corsica;

• Chikungunya, dengue, Zika: 4 cases of dengue reported since the start of the season (May 1);

• heat wave: no heat wave is forecast in the coming days, and activity in emergency rooms for conditions potentially related to heat is low;

• pollen: the allergy risk is very low (1/5) and primarily involves grasses and nettles.