- Brazil: Reported 120 cases in 2025, up from eight in 2024. WHO links infections to forest exposure; infant vaccine coverage was 72%.
- Burkina Faso: Confirmed 44 cases in 2025, including six deaths. WHO's September 2026 review describes wider transmission and emergency vaccination campaigns.
- Peru: Reported 49 cases in 2025, up from 19 in 2024. WHO links outbreaks to exposure in forested areas; childhood vaccine coverage was 61%.
Together, these outbreaks highlight the need for vaccination in communities at risk across different parts of the world.