Key Points Dengue Dengue activity was low in French Guiana, with 2 confirmed cases in the past two weeks, including one DENV3 case. Chikungunya Since January 26, when the first locally...

Key points Smallpox B (Mpox) Two confirmed cases imported from Madagascar were identified in Réunion in S05 and S07/2026. Leptospirosis A seasonal resurgence of leptospirosis is...

Key Points Chikungunya Significant increase in chikungunya cases in week 07-2026, with 74 cases recorded, representing more than 40% of all cases reported since the beginning of the...

Key points Bronchiolitis (under 1 year of age) Activity outside of an epidemic. Decrease in hospital emergency room visits and stability in SOS Médecins consultations. Virology...

Lyme borreliosis, or Lyme disease, is an infectious disease caused by bacteria of the Borrelia burgdorferi sensu lato complex, which is transmitted to humans through the bites of infected ticks.

Key points Lower Respiratory Tract Infections In hospitals: The rate of emergency department visits for acute lower respiratory tract infections (ALRTIs) continued to decline,...

Key Points Lower Respiratory Tract Infections (acute lower respiratory tract infections, all etiologies) Activity continued to decline in emergency departments (visits and...

Key Points Influenza and Flu-Like Illness Transition to the post-epidemic phase of influenza in the Pays de la Loire region in S07. Indicators are declining. Low levels. Bronchiolitis...