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

Diphtheria in Netherlands: 2026 cases and outbreak reports

Reported diphtheria surveillance for Netherlands (NLD) — — latest record 2026-08-15

What the 2026 data shows

No diphtheria case count has been reported for the Netherlands so far in 2026. No 2025 figure has been reported.

ENCLAI has logged 22 surveillance records for diphtheria in Netherlands in 2026, with the most detailed reporting in Aug 2026 (15 records); the case counts run to 2026-06-01. 3 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: ECDC Surveillance Atlas — Netherlands Province-Level (population-weighted) · ECDC Surveillance Atlas of Infectious Diseases

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Surveillance summary

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

Reported cases by year, Netherlands

YearReported casesShare of worldwide reports
2023 14 1.0%
2024 3 0.3%
2025 not reported —
2026 (year to date) not reported —

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 diphtheria 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
Jan 202621
Jun 202611
Jul 202641
Aug 2026151

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 Netherlands with the most diphtheria records this year:

AreaRecords
South Holland11
North Holland4

Diphtheria in other countries, 2026

Country2026 casesTrend
Nigeria 12,491
Australia 630 ▼ Declining · 2025
Niger 313
Senegal 161 (outbreak total to date)
Guinea 148

Other diseases reported in Netherlands, 2026

Disease2026 casesTrend
Seasonal influenza 12,274 ▲ Rising · 2025
Respiratory syncytial virus infection 2,642 ≈ Stable · 2025
COVID-19 1,886 ▼ Declining · 2025
Non-typhoidal salmonellosis 106 (outbreak total to date)
Measles 8 ▼ Declining · 2025

Questions about this page

How many diphtheria cases has Netherlands reported in 2026?
No diphtheria case count has been reported for the Netherlands so far in 2026. No 2025 figure has been reported.
Where does Netherlands publish diphtheria surveillance data?
The counts on this page were published by ECDC Surveillance Atlas — Netherlands Province-Level (population-weighted) and ECDC Surveillance Atlas of Infectious Diseases. 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. Netherlands 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 diphtheria records for Netherlands dated from 2020. 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.