Country surveillance profile
Mosquito-borne disease in Poland — 2025–2026 data
As of 17 June 2026, Mosticare tracks Poland surveillance for West Nile virus. No autochthonous human cases are reported year-to-date in 2026. Each figure cites the responsible national or EU authority.
Last updated · 17 June 2026 · CC BY 4.0
The data
| Country / region | Disease | Cases | Deaths | Period | Source | Updated |
|---|---|---|---|---|---|---|
| Poland | West Nile virus | 0 | 0 | 2025 transmission season | European Centre for Disease Prevention and Control (ECDC) — 2025 end-of-season West Nile virus surveillance (data to 3 December 2025) | 17 June 2026 |
About surveillance in Poland
Poland reported zero locally acquired human West Nile virus cases in the 2025 season; it is not among the 14 European countries ECDC listed with autochthonous cases. Poland did, however, report its first locally acquired (probable) human WNV case in 2024 — excluded from ECDC's counted total only because the place of infection was unconfirmed — so WNV is an emerging signal, not absent. Per ECDC VectorNet (June 2025), neither Aedes albopictus nor Aedes aegypti is established in Poland. The national authority is NIZP-PZH-PIB.
Frequently asked questions
What mosquito-borne diseases is Poland monitoring in 2026?
Mosticare tracks Poland surveillance for West Nile virus, each sourced to the responsible national authority or ECDC.
Were there any West Nile virus cases in Poland in 2025?
No locally acquired (autochthonous) human West Nile virus cases were reported in Poland in 2025. ECDC's surveillance of the 2025 season lists 14 European countries with autochthonous human cases — Italy, Greece, France, Serbia, Romania, Spain, Hungary, Croatia, Albania, Germany, North Macedonia, Bulgaria, Kosovo and Türkiye — and Poland is not among them. This is a published true negative, not an absence of monitoring.
Is the Asian tiger mosquito (Aedes albopictus) established in Poland?
No. According to ECDC's VectorNet distribution map (June 2025), Aedes albopictus is established in 16 EU/EEA countries but not in Poland, where it is recorded as absent. The same applies to Aedes aegypti, which in the EU/EEA is established only in Cyprus (plus EU outermost regions).
Which mosquito spreads West Nile virus in central Europe?
The main enzootic vector in temperate and central Europe is the native Culex pipiens complex (the common house mosquito), which transmits the virus between birds and occasionally to humans and horses. The invasive Aedes species associated with dengue and chikungunya are not the primary WNV vectors and are not established in Poland.
Who monitors mosquito-borne diseases in Poland?
Poland's national public-health authority is the National Institute of Public Health NIH – National Research Institute (Narodowy Instytut Zdrowia Publicznego PZH – Państwowy Instytut Badawczy, NIZP-PZH-PIB), at pzh.gov.pl. At the European level, ECDC aggregates and publishes the surveillance data. Mosticare is an independent civil-society aggregator that republishes these official figures.
Sources
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About this data
Mosticare aggregates and re-publishes vector-borne disease surveillance from ECDC, EFSA, and national ministries of health. Mosticare is an aggregator, not a primary surveillance authority — every figure on this page cites the originating source and is independently verifiable. This is a partial aggregation; for the complete EU/EEA totals, ECDC is the primary source.
The data behind this page is published as free, machine-readable feeds under CC BY 4.0 — the point-in-time incidence snapshot at /threat-map/feed.json (JSON Schema) and the multi-year trends at /threat-map/feed/trends.json (JSON Schema). See the live Europe threat map and the full data room.