SE Asia 22 Sep 2026 · Dr Natalya Mathur
ENCLAI ID ENCLAI-2026-0000427-1 · Cite

Dengue in Malaysia: 22,700 cases in 90 days, 9,062 in the last 30

ENCLAI SURVEILLANCE BRIEFING · 22 SEPTEMBER 2026Dengue in Malaysia: 22,700 cases in 90days, 9,062 in the last 30Dengue fever · Malaysia · reported cases9,062reported cases in the 30 days to 23September▼ 21% fewer than the 30 days before (11,438)11,438The 30 daysbefore22,70090 days to 23September70,7812026 so far4 of 32rank, reportingcountriesThree 30-day windows11,43830 days before9,062Last 30 daysLargest counts, last 90 daysBrazil69,753Mexico35,487Malaysia22,700Singapore1,025Nepal274The US20517 countries with a reported count in this windowWhat this briefing shows1Reported cases fell from 11,438 to 9,062 between the two latest30-day windows, 21% fewer.2Malaysia accounts for 10.1% of the dengue cases reported to ENCLAIworldwide in 2026 and ranks 4 of 32 reporting countries.32025 closed at 0 reported cases.Read with care: reports to official surveillance, not people and not a rate. A change between30-day windows can come from reporting timing as much as from transmission.Source: official surveillance reports compiled by ENCLAI · data as of 2026-09-23 ·enclai.net/newsVerify every figure against the source data before use; ENCLAI does not guarantee accuracy orcompleteness.
  1. Reported cases fell from 11,438 to 9,062 between the two latest 30-day windows, 21% fewer.
  2. Malaysia accounts for 10.1% of the dengue cases reported to ENCLAI worldwide in 2026 and ranks 4 of 32 reporting countries.
  3. 2025 closed at 0 reported cases.
Customise it in Visual Studio
Largest included reported counts (6 of 17 countries) · 2026-06-25 through 2026-09-23 · source-record dates; coverage varies
Brazil69,753
Mexico35,487
Malaysia22,700
Singapore1,025
Nepal274
United States205
Dengue fever — Malaysia · reported surveillance count · 2026-06-25 through 2026-09-23 · inclusive source-record dates
Dengue fever — Malaysia · reported surveillance count · 2026-08-24 through 2026-09-23 · inclusive source-record dates
Dengue fever — Malaysia · reported surveillance count · 2026-07-24 through 2026-08-23 · inclusive source-record dates
Dengue fever — Malaysia · reported surveillance count · 2025-08-24 through 2025-09-23 · inclusive source-record dates
Dengue fever · combined reported surveillance count · 2026-06-25 through 2026-09-23 · inclusive source-record dates
Dengue fever · weekly reported-count series · Weeks starting 2026-06-15 through 2026-08-31
Largest included reported counts (6 of 17 countries) · 2026-06-25 through 2026-09-23 · source-record dates; coverage varies

The full briefing

Full 2026 picture: Dengue fever in Malaysia — reported cases by year, monthly records and every briefing for this pair.

Malaysia reported 22,700 dengue cases in the 90 days to 23 September. 9,062 of them came in the 30 days to 23 September, against 11,438 in the 30 days before.

Why it matters

Malaysia accounts for 10.1% of the dengue cases reported to ENCLAI worldwide so far in 2026. It ranks 4 of 32 reporting countries.

The numbers

PeriodReported cases
Last 30 days (to 23 September)9,062
The 30 days before that11,438
90 days to 23 September22,700
2026 so far (ENCLAI export)70,781
The card shows dengue in Malaysia. It compares the last 30 days with the 30 days before, as reported to ENCLAI.
The card shows dengue in Malaysia. It compares the last 30 days with the 30 days before, as reported to ENCLAI.

What the source says

These figures come from official surveillance reports. They count reports, not people. They are not an incidence rate, the rate of new cases in a population. They do not cover the whole population. The reporting periods do not match these dates exactly. Some reports are incomplete or still in progress. Some run past the window. Some reports do not say which date they use: symptom onset, notification, or confirmation.

Caveats

  • A change between two 30-day windows can come from reporting timing as much as from transmission. The source does not say which.

Where to learn more

Dengue fever in Malaysia: the 2026 picture · Dengue fever worldwide · Malaysia: all diseases · How to read these counts

Retained reporting context

Included reporting countries

Dengue fever

129,985

combined reported surveillance count

2026-06-25 through 2026-09-23 · inclusive source-record dates

For Dengue fever, the combined reported surveillance count across the 17 countries with positive reported counts in this selection is 129,985. The selection uses source-record dates 2026-06-25 through 2026-09-23, inclusive. This covers only these reporting countries; source periods and completeness vary.

Exact included country membership
CountryReported countSource-record dates
American Samoa572026-06-25 through 2026-09-23
Australia1332026-06-25 through 2026-09-23
Bulgaria22026-06-25 through 2026-09-23
Brazil69,7532026-06-25 through 2026-09-23
Germany502026-06-25 through 2026-09-23
Finland42026-06-25 through 2026-09-23
United Kingdom582026-06-25 through 2026-09-23
Hong Kong32026-06-25 through 2026-09-23
South Korea402026-06-25 through 2026-09-23
Mexico35,4872026-06-25 through 2026-09-23
Malaysia22,7002026-06-25 through 2026-09-23
Nepal2742026-06-25 through 2026-09-23
New Zealand212026-06-25 through 2026-09-23
Puerto Rico1192026-06-25 through 2026-09-23
Singapore1,0252026-06-25 through 2026-09-23
Taiwan542026-06-25 through 2026-09-23
United States2052026-06-25 through 2026-09-23

Snapshot 2026-09-23

Weekly reporting history

Dengue fever

weekly reported-count series

Weeks starting 2026-06-15 through 2026-08-31

A retained retrospective weekly reported-count series across included reporting countries. Country membership and reporting completeness can vary by week. Missing weeks remain gaps. This is a separate report-series measure; it does not establish exact incidence or laboratory confirmation.

Retained weekly report series
WeekReported count
2026-06-15 through 2026-06-2115017
2026-06-22 through 2026-06-2817749
2026-06-29 through 2026-07-0513326
2026-07-06 through 2026-07-1212199
2026-07-13 through 2026-07-1912451
2026-07-20 through 2026-07-2614425
2026-07-27 through 2026-08-0215499
2026-08-03 through 2026-08-0915881
2026-08-10 through 2026-08-1617817
2026-08-17 through 2026-08-2316325
2026-08-24 through 2026-08-3013059
2026-08-31 through 2026-09-066112

Snapshot 2026-09-22

Sources and limitations

  • Window. Each quantity keeps its recorded source-selection dates and coverage notes. Dated batches and weekly or genomic observations retain their separate measures. Publication or capture dates do not establish case onset, equal cohorts or period completeness.
  • Denominator. The retained counts do not establish complete populations, equal reporting cohorts or incidence rates. Source period bounds and definitions can differ.
  • Case definition. Case definitions are set nationally and change over time. Counts for the same disease in different countries may not be counting the same thing.
  • Revisions. Agencies restate figures. Values here are as reported at the time of publication; see the update history below.

ENCLAI counts reflect verified records available from reporting sources for the stated window. They are not estimates of total incidence and should not be interpreted as medical advice. Full methodology: the dataset.

Review and corrections

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