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Borneo wildfires trigger respiratory crisis across Indonesian provinces

More than 300,000 people across seven Indonesian provinces contracted respiratory tract infections as widespread forest fires blanketed the island of Borneo with smoke between August and October, according to health ministry data.

LSN Malaysia · 27 October 2026

Borneo wildfires trigger respiratory crisis across Indonesian provinces

The respiratory infections marked a significant public health impact from the seasonal fires that swept across the region during the dry months. Indonesia's health ministry documented the outbreak across multiple provinces as smoke from burning forests created hazardous air quality conditions affecting millions of residents.

The scale of infections underscores the recurring health crisis triggered by Borneo's annual fire season. Respiratory tract infections, ranging from mild to severe cases, placed strain on healthcare systems already managing other pressing health concerns across the affected provinces.

Residents in affected areas reported difficulty breathing and other air-quality-related health complications as smoke persisted over populated centers. The infections predominantly affected vulnerable populations including children, the elderly, and those with pre-existing respiratory conditions.

The incident highlights the transnational environmental challenge posed by forest fires in Southeast Asia, with smoke frequently crossing borders and affecting neighboring regions. Indonesian authorities continue to monitor air quality and respiratory disease cases as part of broader efforts to mitigate the impact of seasonal wildfires on public health.