Sri Lanka: Dengue Outbreak - May 2026
Highupdated 3 months agoA dengue outbreak is currently active in Ratnapura District, Sri Lanka, affecting an area within approximately 25 kilometers.
- 25kmRadius of the affected area
What this changes for you, on the ground
A dengue outbreak is currently active in Ratnapura District, Sri Lanka, affecting an area within approximately 25 kilometers. The outbreak began in May 2026 and remains ongoing across the district.
Read the full analysis
If you are on site, you should be aware that dengue transmission is occurring in your area. The virus spreads through mosquito bites, particularly during dawn and dusk hours. Monitor yourself for symptoms including fever, headache, joint pain, and rash, and seek medical attention promptly if these develop.
Follow local health authority guidance on mosquito prevention: use insect repellent, wear long sleeves and trousers when possible, and ensure accommodation has screened windows or air conditioning. Avoid standing water where mosquitoes breed. If you develop symptoms, contact local health services immediately for proper assessment and care.
This alert is based on data from ReliefWeb.
Written with the help of AI from Mira Safe's sourced data on August 24, 2026 · does not replace local guidance How this analysis is produced →
Issued by ReliefWeb (UN OCHA).
Related events in this alert
The facts this alert is built on — the original one first, then what joined it.
Sri Lanka: Dengue Outbreak - May 2026
5 months ago
How it evolved
- Alert raisedHighJuly 28, 2026 at 12:51 PM
A single entry: the alert has not changed state since it was raised.
Affected areas
Live safety pages for the places concerned by this alert.
On the ground in Sri Lanka? Ask Mira
Be notified in Mira ChatMira informs you. Mira is not an emergency service — in an emergency, call local emergency services. Some of this page's content is generated with the help of AI from sourced, quantified data.