Flu season in Hungary
Current flu, COVID-19 and RSV activity in Hungary — based on ECDC ERVISS weekly data from the National Public Health Center (NNK / NNGYK). Rescaled into a consultation-equivalent signal for a qualitative low / moderate / high classification.
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Current situation: Influenza
In week 20 of 2026, activity of influenza (seasonal flu) in Hungary is low. The trend — derived from clinical surveillance — is stable. Over a four-week comparison, a clear decline is visible.
The classification is based on the ECDC ERVISS weekly reports, drawing on data from the National Public Health Center (NNK / NNGYK) via the sentinel GP network. Seasonally, infection waves in Hungary typically peak between January and March; activity is usually markedly lower during the summer months. How severe a given season becomes depends on the circulating virus variant and the population's immune status, among other factors.
Data sources and methodology
The current picture for Hungary is built on the European Respiratory Virus Surveillance Summary (ERVISS), published weekly by the European Centre for Disease Prevention and Control (ECDC). the National Public Health Center (NNK / NNGYK) via the sentinel GP network is the national public-health authority that feeds ERVISS with sentinel primary care and virology data.
ECDC ERVISS
ERVISS is ECDC's weekly pan-European surveillance summary for influenza, SARS-CoV-2 and RSV. National authorities — in Hungary's case the National Public Health Center (NNK / NNGYK) via the sentinel GP network — submit harmonised indicators every week, which ECDC publishes in a standardised dataset on Thursdays. Using ERVISS rather than each country's native portal ensures cross-country comparability.
ILI / ARI consultation rates and positivity
the National Public Health Center (NNK / NNGYK) via the sentinel GP network operates a sentinel network of general practices that report weekly rates of patients consulting for influenza-like illness (ILI) or acute respiratory infection (ARI). A subset of patients is swabbed and tested by reference laboratories, producing pathogen-specific positivity rates for flu, SARS-CoV-2 and RSV.
Why this source
Combining consultation incidence with virological positivity yields a pathogen-specific weekly incidence signal (ILI × positivity / 100). This is the standard European methodology and provides a more robust view than either indicator alone — consultation rates capture illness burden, positivity confirms which pathogen is driving it.
Qualitative classification
The “low”, “moderate” and “high” categories follow seasonal reference values and epidemiological thresholds calibrated to match our classifications for other countries. The ILI × positivity / 100 product is scaled to comparable thresholds using a divisor of 3, which aligns European sentinel peaks with the consultation-equivalent scale used elsewhere. Data refreshes weekly when ECDC publishes the latest ERVISS update, typically on Thursdays.
Frequently asked questions
When is flu season in Hungary?
Hungarian flu activity usually starts rising in late December, peaks between January and March, and fades by April. The precise window shifts year to year with the dominant influenza subtypes. NNK/NNGYK — the National Public Health Center (Nemzeti Népegészségügyi és Gyógyszerészeti Központ) — publishes weekly influenza updates through its sentinel GP network. Central European climates place Hungarian peaks close to those in Austria, Czechia, and Slovakia.
How does NNGYK classify flu severity?
NNGYK describes influenza activity using qualitative bands based on sentinel consultation rates, laboratory positivity, and severity signals from hospitals. These classifications appear in the weekly epidemiological bulletin and are reported to ECDC for the European Respiratory Virus Surveillance Summary (ERVISS). The qualitative framing makes it easier for clinicians and the public to interpret whether pressure on health services is ordinary, elevated, or exceptional.
How is flu surveillance organised in Hungary?
Hungary's influenza surveillance combines a sentinel network of general practitioners reporting influenza-like illness, virological confirmation at the national reference laboratory under NNGYK, and hospital notifications of severe cases. Weekly bulletins summarise the picture and feed ECDC ERVISS, which places Hungary's trajectory alongside Austria, Czechia, Romania, and the rest of the EU/EEA.
Is the flu vaccine free in Hungary?
Hungary offers free seasonal influenza vaccination to priority groups defined by the Ministry of Human Capacities, including adults aged 60 and above, pregnant women, people with chronic illnesses, residents of long-term-care facilities, and healthcare workers. Vaccines are delivered through GPs and occupational-health services. NNGYK reports vaccine-uptake estimates alongside its weekly surveillance bulletin.
How does Hungary compare to its Central European neighbours?
Because Hungary reports into ECDC ERVISS with harmonised indicators, its weekly flu classification is directly comparable with Austria, Czechia, Slovakia, Romania, and the rest of the EU/EEA. Central-European countries typically see broadly similar peak windows between January and March. Lead–lag patterns of a few weeks are common and are easy to read in ECDC's side-by-side dashboards.
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About this page
Published by Renderei Martin GmbH, Berlin. No commercial interest in individual health recommendations — the app is optionally monetised via a freemium subscription.
Content is based exclusively on the linked official surveillance publications. Medical statements are curated against the guidance of RKI, ECDC and WHO.
Data last refreshed: 31/05/2026, 21:19. Update cadence: weekly.
This page is not medical advice and does not replace consultation with a healthcare professional. For specific symptoms, please contact a medical professional.
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