Country surveillance profile
Mosquito-borne disease in Lithuania — 2025–2026 data
As of 17 June 2026, Mosticare tracks Lithuania 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 |
|---|---|---|---|---|---|---|
| Lithuania | 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 Lithuania
Lithuania reported zero locally acquired human West Nile virus cases in the 2025 season, according to the European Centre for Disease Prevention and Control (ECDC) — the country is not among the 14 European nations that reported autochthonous human cases. ECDC VectorNet mapping shows neither Aedes albopictus nor Aedes aegypti established in Lithuania. National communicable-disease surveillance is run by the National Public Health Centre under the Ministry of Health (NVSC).
Frequently asked questions
What mosquito-borne diseases is Lithuania monitoring in 2026?
Mosticare tracks Lithuania surveillance for West Nile virus, each sourced to the responsible national authority or ECDC.
Were there any West Nile virus cases in Lithuania in 2025?
No. According to ECDC's seasonal surveillance, Lithuania reported zero locally acquired (autochthonous) human West Nile virus cases in the 2025 transmission season. Lithuania does not appear in ECDC's final list of 14 European countries that reported human cases that year.
Is the tiger mosquito (Aedes albopictus) established in Lithuania?
Not according to ECDC. As of the ECDC VectorNet distribution map of June 2025, Aedes albopictus is not established in Lithuania or any other Baltic state. The species is established further south and west in Europe, but its range had not reached the Baltic region.
Which mosquito spreads West Nile virus at Lithuania's latitude?
The principal bridge vector for West Nile virus in temperate northern Europe is the common house mosquito, Culex pipiens. This is the relevant native vector to watch, rather than the invasive Aedes species that are not established in Lithuania.
Who is responsible for tracking mosquito-borne diseases in Lithuania?
National communicable-disease surveillance is conducted by the National Public Health Centre under the Ministry of Health (NVSC). At the European level, the European Centre for Disease Prevention and Control (ECDC) aggregates and publishes West Nile virus and vector-distribution data, which is the source of the figures shown here. Mosticare is an independent re-publisher of these official figures, not a surveillance authority.
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.