Dengue in Laos
Country profile for Laos (Western Pacific): official dengue surveillance data reported to WHO, analysed by the SENTINARA early-warning engine.
Key facts
- Laos reported 5,150 dengue cases from January to September 2026, -44.2% compared with the same period of 2025, according to WHO Global Dengue Surveillance.
- Deaths reported in 2026 to September: 0 (1 in the same period of 2025).
- In 2025, the last full year, Laos recorded 12,245 cases, an incidence of 155.5 per 100,000 people and a case fatality rate of 0.008%.
- SENTINARA early-warning level for September 2026: Normal, because cases are within the usual range for this time of year.
- Ensemble forecast: October 2026 about 628 cases (80% range 429 to 920); November 2026 about 485 cases (80% range 303 to 774); December 2026 about 344 cases (80% range 198 to 598). Backtest MAPE 25.8%, MASE 0.14.
- Cases usually peak in July (based on 6 complete years).
- The anomaly detectors flagged 5 months; the most recent was February 2024 with 587 cases.
- OpenDengue holds complete annual totals for Laos since 1979.
- The monthly series is extended back to January 2020 with OpenDengue data, after checking that both sources agree (median ratio 1).
- Countries with a similar seasonal pattern: Thailand, Cambodia, Costa Rica, Guatemala, Côte d'Ivoire.
Related pages
- Dengue in Thailand
- Dengue in Cambodia
- Dengue in Costa Rica
- Dengue in Guatemala
- Dengue in Côte d'Ivoire
- Dengue in Indonesia
- Dengue in People's Republic of China
- Dengue in Singapore
- Dengue in Australia
Data updated 2026-10-31. Sources: WHO Global Dengue Surveillance; OpenDengue V1.3 (Clarke et al., 2025), doi:10.6084/m9.figshare.24259573; Dinas Kesehatan Kota Semarang; World Bank Open Data; NASA POWER.