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

Leptospirosis in Poland: 2026 cases and outbreak reports

Reported leptospirosis surveillance for Poland (POL) — ▲ Rising · 2025 — latest record 2026-10-02

What the 2026 data shows

As of 31 October 2026, Poland has reported 13 leptospirosis cases in 2026, as published by National Institute of Public Health (NIZP-PZH). The full year 2025 closed at 18 cases. 2025 closed 260% above 2023, which is why the trend reads “Rising”.

Of the 27 countries reporting leptospirosis to ENCLAI in 2026, Poland accounts for 0.1% of reported cases and ranks 21 by case count.

ENCLAI has logged 9 surveillance records for leptospirosis in Poland in 2026, with the most detailed reporting in Oct 2026 (8 records); the case counts run to 2026-10-31. 2 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: National Institute of Public Health (NIZP-PZH) — Epidemiological Reports

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Surveillance summary

2026 cases (YTD)
13
2025 cases (full year)
18
Baseline avg (3yr)
N/A
Trend (2025)
▲ Rising · 2025
+260% vs 2023

Reported cases by year, Poland

YearReported casesShare of worldwide reports
2023 5 0.0%
2024 not reported —
2025 18 0.3%
2026 (year to date) 13 0.1%

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 leptospirosis 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
Jul 202611
Oct 202681

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 leptospirosis records this year:

AreaRecords
Łódzkie1
Małopolskie1
Mazowieckie1
Podkarpackie1
Podlaskie1

Leptospirosis in other countries, 2026

Country2026 casesTrend
Sri Lanka 5,499
Colombia 4,215
Brazil 2,531 ▼ Declining · 2025
Philippines 868
Dominican Republic 297

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 leptospirosis cases has Poland reported in 2026?
As of 31 October 2026, Poland has reported 13 leptospirosis cases in 2026, as published by National Institute of Public Health (NIZP-PZH). The full year 2025 closed at 18 cases. 2025 closed 260% above 2023, which is why the trend reads “Rising”.
Is leptospirosis rising or falling in Poland?
ENCLAI's trend reading for leptospirosis in Poland is “Rising · 2025”: the latest complete year is compared with the earlier baseline from the reported counts; the current year is not judged until it closes.
Where does Poland publish leptospirosis surveillance data?
The counts on this page were published by National Institute of Public Health (NIZP-PZH) — Epidemiological Reports. 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. 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 leptospirosis records for Poland dated from 2023. How we verify and update data: methodology & Trust Center · understanding case counts.

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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.

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