Compiled by the ENCLAI research team following a documented methodology · Editorial oversight: Dr Natalya Mathur, Founder · Data last updated: (UTC)

Chikungunya fever in Madagascar: 2026 cases and outbreak reports

Reported chikungunya fever surveillance for Madagascar (MDG) — — latest record 2026-10-07

What the 2026 data shows

The latest report for Madagascar gives an outbreak total of 29 chikungunya fever cases to date. That is a running total since the outbreak began, not a count for 2026. No 2025 figure has been reported.

ENCLAI has logged 7 surveillance records for chikungunya fever in Madagascar in 2026, with the most detailed reporting in Oct 2026 (6 records); the case counts run to 2026-02-05. 3 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: WHO AFRO Weekly Bulletin on Outbreaks and Other Emergencies · WHO AFRO Weekly Bulletin — cumulative suspected cases

Key facts: Chikungunya fever

Transmission
Aedes bite (daytime)
Female Aedes aegypti and Ae. albopictus; the virus replicates in the mosquito's salivary glands before it is passed on.WHO 2025
Incubation
4–8 days
Range 2–12 days after the bite.WHO 2025
Vaccine
2 approved, limited use
Not yet widely available, pending WHO review of trial data.WHO 2025

Cited reference facts about the disease, not derived from the surveillance counts on this page. Full set on the Chikungunya fever page.

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Surveillance summary

2026 cases (YTD)
29 (outbreak total to date)
2025 cases (full year)
not reported
Baseline avg (3yr)
N/A
Trend (2025)
—
No 2025 figure

Reported cases by year, Madagascar

YearReported casesShare of worldwide reports
2023 not reported —
2024 not reported —
2025 not reported —
2026 (year to date) 29 (outbreak total to date) —

Reporting bounds and case definitions vary; historical baselines are a separate comparison measure. Worldwide share compares this country's reported figure with the sum of all countries reporting chikungunya fever to ENCLAI for that year. "Incomplete year" means our sources cover less than ten months of that year, so no full-year figure is shown; "outbreak total to date" is a running total since an outbreak began, not a count for one year.

Surveillance records logged in 2026

MonthRecordsReporting sources
Apr 202611
Oct 202662

A record is one dated surveillance publication or one row of an official table; a month with many records is a month with detailed reporting, not necessarily more cases.

Sub-national reporting, 2026

Areas within Madagascar with the most chikungunya fever records this year:

AreaRecords
Mananjary, Irondro1

Chikungunya fever in other countries, 2026

Country2026 casesTrend
Brazil 59,714 ▼ Declining · 2025
Bolivia 11,891
Colombia 11,506
French Guiana 2,163
Mayotte 1,333

Other diseases reported in Madagascar, 2026

Disease2026 casesTrend
Mpox (monkeypox) 3,534 (outbreak total to date)
Acute poliomyelitis 1

Questions about this page

How many chikungunya fever cases has Madagascar reported in 2026?
The latest report for Madagascar gives an outbreak total of 29 chikungunya fever cases to date. That is a running total since the outbreak began, not a count for 2026. No 2025 figure has been reported.
Where does Madagascar publish chikungunya fever surveillance data?
The counts on this page were published by WHO AFRO Weekly Bulletin on Outbreaks and Other Emergencies and WHO AFRO Weekly Bulletin — cumulative suspected cases. ENCLAI compiles and normalises them and is not affiliated with these authorities.

About this data

Figures are reported case counts as published by the originating health authorities, compiled by ENCLAI from 444 verified surveillance sources. Madagascar figures reflect the reporting available to ENCLAI; reporting periods and case definitions differ between sources, and a missing report does not establish zero cases. ENCLAI holds chikungunya fever records for Madagascar dated from 2009. How we verify and update data: methodology & Trust Center · understanding case counts.

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The daily disease brief

One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.

Double opt-in — we send a confirmation link and nothing else until you click it. One-click unsubscribe on every email. See our privacy notice.