Key Points

Heat and Health

• First heat wave in the region from June 20 to 26, 2025

• Second heat wave currently underway

Chikungunya, dengue, and Zika

• 3 cases of locally acquired chikungunya in Drôme; 130 cases of chikungunya and 83 cases of imported dengue reported since May 1

Reportable Diseases

• Monitoring of hepatitis A, invasive meningococcal disease, Legionnaires’ disease, and measles

COVID-19, acute respiratory infections (ARI)

• Low-level circulation of SARS-CoV-2 in the region (197 Covid-19 cases in June vs. 157 in May). Low number of reports of clusters of ARI cases in long-term care facilities (8 reports in S25-2025 and S26-2025). Circulation of influenza virus and RSV at very low, non-epidemic levels in S26-2025.