SENTINARA

Global

Dengue in Cambodia

Country profile for Cambodia (Western Pacific): official dengue surveillance data reported to WHO, analysed by the SENTINARA early-warning engine.

Key facts

  • Cambodia reported 99,529 dengue cases from January to September 2026, +122.6% compared with the same period of 2025, according to WHO Global Dengue Surveillance.
  • Deaths reported in 2026 to September: 114 (0 in the same period of 2025).
  • In 2025, the last full year, Cambodia recorded 63,016 cases, an incidence of 353.1 per 100,000 people and a case fatality rate of 0.000%.
  • SENTINARA early-warning level for September 2026: Outbreak signal, because the latest month is above the 3rd quartile of the previous five years; the outbreak score is 1.63 (above 1 means cases exceed the 99.5% upper bound for the season); CUSUM detects a sustained rise since July 2026; there is a 59% probability of crossing the epidemic threshold within three months; the last three months are +512.2% above the three months before.
  • Ensemble forecast: October 2026 about 17,855 cases (80% range 10,409 to 30,626); November 2026 about 13,734 cases (80% range 6,362 to 29,645); December 2026 about 9,525 cases (80% range 3,626 to 25,020). Backtest MAPE 30.9%, MASE 0.51.
  • Cases usually peak in August (based on 6 complete years).
  • The anomaly detectors flagged 21 months; the most recent was September 2026 with 20,993 cases.
  • OpenDengue holds complete annual totals for Cambodia since 1980.
  • 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: Costa Rica, Guatemala, Thailand, Honduras, El Salvador.

Related pages

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.