Public Health Monitoring in Réunion. Bulletin dated September 4, 2026.
Key Points
Smallpox B (mpox)
- 24 imported cases from Madagascar and 5 locally acquired cases. Secondary spread from the imported cases has been contained, and local transmission is limited.
Arboviral Diseases
- Sporadic cases.
Acute respiratory infections
- The flu epidemic has begun, with a limited public health impact at this stage. Circulation of three influenza strains—A(H1N1)pdm09, A(H3N2), and type B—and increased circulation of rhinovirus.
Bronchiolitis in children under 1 year of age
- Moderate increase in emergency department visits.
Gastroenteritis
- A decline in gastroenteritis activity in emergency departments, following the increase observed the previous week.
Leptospirosis
- Sporadic cases; off-season; low transmission rate
In relation to
Flu
thematic dossier
The flu is a contagious viral respiratory infection that causes seasonal outbreaks every winter. The flu vaccine is the most effective way to protect yourself.
Smallpox B (Mpox)
thematic dossier
Smallpox B (Mpox), formerly known as monkeypox, is a rare viral infectious disease caused by the monkeypox virus and transmitted primarily from rodents to humans, and then from person to person,...
Dengue
thematic dossier
Dengue fever is a viral disease transmitted by mosquitoes of the genus Aedes. The most common symptoms are fever and joint pain. Its complications can be severe.
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