# Dengue fever outbreaks in South and Southeast Asia

> Live situation record from CLSTR: https://clstr.news/situations/dengue-fever-outbreaks-in-south-and-southeast-asia
> Updated: 2026-09-07T04:13:31.000Z. Sources: 25. Developments: 7.

Dengue fever outbreaks continue across South and Southeast Asia. In Sri Lanka, the National Dengue Control Unit recorded 88,088 confirmed cases and 63 deaths, while Singapore reported over 1,700 cumulative cases. Malaysia saw cases surge to 58,079 by mid-August, a 56.2 percent increase over the previous year, resulting in 55 deaths.

In Bangladesh, the epidemic has escalated rapidly, with 42,590 hospitalizations and 117 deaths recorded. A record-breaking 1,558 hospitalizations occurred in a single 24-hour period, the highest daily tally of the year. This surge is placing immense pressure on a healthcare system also managing a measles epidemic that has claimed nearly 1,000 children's lives. Professor Kabirul Bashar of Jahangirnagar University warned that the epidemic may not have peaked, suggesting hospitalizations could exceed 30,000 this month if trends continue through October.

Localized crises have emerged in Bangladesh, such as in the Pirojpur district of the Barishal division, where 1,965 patients have been admitted this year. This has led to acute shortages of hospital beds, forcing some patients to be treated on floors.

In India, West Bengal infections have exceeded 4,500 for the year, with more than 500 new infections reported in the last seven days. Murshidabad remains the most severely affected district with 870 total cases, followed by Kolkata with 402. In response, West Bengal Municipal Affairs and Urban Development Minister Agnimitra Paul stated the government is focused on eradication and transparency, emphasizing that authorities have been directed to report all cases accurately following blood tests rather than suppressing numbers. This follows a September 2 standard operating procedure involving door-to-door monitoring and immediate testing.

## Claims

- Bangladesh has seen 42,590 hospitalizations due to dengue fever this year. (corroborated by 12 sources)
- There have been 117 deaths from dengue fever in Bangladesh this year. (corroborated by 12 sources)
- The epidemic peak has not yet been reached. (corroborated by 11 sources)
- September could be the worst month of the year for dengue infections if current trends continue. (corroborated by 11 sources)
- Hospitalizations in September could exceed 30,000. (corroborated by 11 sources)
- The healthcare system is also managing a nationwide measles epidemic that has killed nearly 1,000 children this year. (corroborated by 11 sources)
- In the last 24 hours, 1,558 people were hospitalized and at least four died from dengue. (corroborated by 10 sources)

## Timeline

### 2026-09-07: Bangladesh dengue outbreak accelerates, straining hospitals

Bangladesh faces a surging dengue outbreak with 42,590 hospitalizations and 117 deaths this year. Experts warn September could be the worst month yet as hospitals struggle with capacity and a concurrent measles

13 sources. https://clstr.news/cluster/bangladesh-dengue-outbreak-accelerates-with-rising-deaths-and-hospitalizations

### 2026-09-05: West Bengal dengue cases exceed 4,500 this year

Dengue cases in West Bengal have surpassed 4,500 this year, with over 500 new infections reported in the last week. Murshidabad is the hardest-hit district as officials increase testing and monitoring.

3 sources. https://clstr.news/cluster/west-bengal-dengue-cases-exceed-4500-this-year

### 2026-09-02: Khulna hospitals overwhelmed by dengue fever surge

A dengue fever surge in Khulna, Bangladesh, is overwhelming hospitals, causing bed shortages and rising fatalities as the disease spreads from major cities into rural areas.

2 sources. https://clstr.news/cluster/khulna-hospitals-overwhelmed-by-dengue-fever-surge

### 2026-08-31: West Bengal faces surge in dengue cases across five districts

Dengue cases are surging in West Bengal, with nearly 3,000 infections reported. Five districts, including Kolkata and Murshidabad, have been identified as high-risk zones amid rising mortality and malaria fears

4 sources. https://clstr.news/cluster/west-bengal-faces-surge-in-dengue-cases-with-3000-infections-reported

### 2026-08-23: Bangladesh reports 839 new dengue cases and five deaths in 24 hours

Bangladesh recorded 839 new dengue cases and five deaths in 24 hours, bringing the annual death toll to 82 and total cases to 28,929.

3 sources. https://clstr.news/cluster/bangladesh-reports-839-new-dengue-cases-and-five-deaths-in-24-hours

### 2026-08-21: Malaysia reports surge in dengue fever cases and deaths

Malaysia reports a 56.2 percent surge in dengue fever cases, totaling over 58,000 infections and 55 deaths, with significant outbreaks in Selangor and the Klang Valley.

3 sources. https://clstr.news/cluster/malaysia-reports-surge-in-dengue-fever-cases-and-deaths

### 2026-08-06: Dengue Outbreaks Surge in Sri Lanka and Persist in Singapore

Sri Lanka reports over 88,000 dengue cases and 63 deaths, while Singapore logs 119 new cases and 17 active clusters, prompting ongoing mosquito‑control measures.

3 sources. https://clstr.news/cluster/dengue-outbreaks-surge-in-sri-lanka-and-persist-in-singapore

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Cite as: Dengue fever outbreaks in South and Southeast Asia. CLSTR, https://clstr.news/situations/dengue-fever-outbreaks-in-south-and-southeast-asia
