Health Monitoring in Corsica. Bulletin of October 22, 2025.

Key Points

Dengue, Chikungunya, and Zika

  • No new locally transmitted cases have been reported in Corsica since week 33. The total stands at 3 outbreaks and 18 cases of locally transmitted chikungunya.

  • In mainland France, as of October 20, 91 outbreaks of local vector-borne transmission have been identified: 79 chikungunya outbreaks (+1 compared to last week) and 12 dengue outbreaks (no change compared to last week).

  • Summary of imported cases in Corsica: 6 imported cases of dengue and 3 imported cases of chikungunya (no new cases compared to last week).

Asthma at the start of the school year

  • Asthma activity is decreasing at SOS Médecins and in emergency departments, with a more marked decrease at SOS Médecins. Both networks show activity levels similar to last year. This report is the last one published for this season.

Acute respiratory infections

  • Flu and flu-like syndromes: very low activity.

  • Bronchiolitis (under 1 year): very low activity.

  • COVID-19: activity decreasing at SOS Médecins, increasing in emergency departments.

Mortality

  • No excess mortality observed.

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