Key Points 

Extreme heat, heat waves

• In S21, heat-related emergency room visits increased significantly in the Provence-Alpes-Côte d'Azur region: compared to S20, there was a doubling in the number of visits and the share of emergency room activity for the iCanicule indicator (hyperthermia/heatstroke, dehydration, and hyponatremia). A slight increase in fainting episodes was also observed. At SOS Médecins, however, heat-related medical procedures remained stable.

Dengue, Chikungunya, and Zika

• Since the start of enhanced surveillance (May 1), 15 imported cases have been identified in the region: 4 of chikungunya (+2 compared to last week) and 11 of dengue (+2).

West Nile virus infections

• No indigenous cases have been detected in the region, or more broadly in mainland France, since the start of enhanced surveillance (May 1).

Pollen and allergies

• Pollen exposure was at a moderate to high level, linked to grass pollen.
• Allergy-related activity at SOS Médecins is trending upward, at a level typical for the season.

Mortality

• No excess mortality observed.