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

Viral meningitis (aseptic) in Poland: 2026 cases and outbreak reports

Reported viral meningitis (aseptic) surveillance for Poland (POL) — ▼ Declining · 2025 — latest record 2026-10-02

What the 2026 data shows

No viral meningitis (aseptic) case count has been reported for Poland so far in 2026. The full year 2025 closed at 668 cases. 2025 closed 24% below the 2023–2024 average, which is why the trend reads “Declining”.

ENCLAI has logged 187 surveillance records for viral meningitis (aseptic) in Poland in 2026, with the most detailed reporting in Oct 2026 (187 records). 1 distinct surveillance sources reported this pair in 2026.

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Surveillance summary

2026 cases (YTD)
not reported
2025 cases (full year)
668
Baseline avg (3yr)
N/A
Trend (2025)
▼ Declining · 2025
-24% vs 2023–2024 average

Reported cases by year, Poland

YearReported casesShare of worldwide reports
2023 785 6.9%
2024 985 10.5%
2025 668 9.3%
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 viral meningitis (aseptic) 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
Oct 20261871

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 Poland with the most viral meningitis (aseptic) records this year:

AreaRecords
Dolnośląskie11
Kujawsko-Pomorskie11
Łódzkie11
Lubelskie11
Lubuskie11

Viral meningitis (aseptic) in other countries, 2026

Country2026 casesTrend
Brazil 2,977 ▼ Declining · 2025
Lithuania 64 ▲ Rising · 2025
Panama 47
Ukraine 39 ▼ Declining · 2025
Uruguay 18

Other diseases reported in Poland, 2026

Disease2026 casesTrend
Respiratory syncytial virus infection 76,067 ≈ Stable · 2025
Varicella 73,825 ▼ Declining · 2025
Lyme borreliosis 43,105 ▲ Rising · 2025
COVID-19 34,918 ▼ Declining · 2025
Clostridioides difficile colitis 18,567 ≈ Stable · 2025

Questions about this page

How many viral meningitis (aseptic) cases has Poland reported in 2026?
No viral meningitis (aseptic) case count has been reported for Poland so far in 2026. The full year 2025 closed at 668 cases. 2025 closed 24% below the 2023–2024 average, which is why the trend reads “Declining”.
Is viral meningitis (aseptic) rising or falling in Poland?
ENCLAI's trend reading for viral meningitis (aseptic) in Poland is “Declining · 2025”: the latest complete year is compared with the earlier baseline from the reported counts; the current year is not judged until it closes.

About this data

Figures are reported case counts as published by the originating health authorities, compiled by ENCLAI from 444 verified surveillance sources. Poland 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 viral meningitis (aseptic) records for Poland dated from 2015. 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.