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Influenza activity and vaccine supply in Central Europe

Updated 3 times since CLSTR started tracking revisions of this situation.

What changed

2026-10-10 10:16 UTC → 2026-10-13 06:43 UTC · added removed

The 2026/2027 influenza season has shown an early onset in Central and Southeast Europe. In Croatia, the Croatian Institute of Public Health (HZJZ) confirmed that influenza appeared earlier than usual, with an uptick noted as early as mid-August, potentially linked to travel. While a spike in cases occurred during the 36th week, the situation has since stabilized to levels consistent with the current period. Laboratory samples have confirmed Influenza A, including two subtypes. subtypes, though officials indicate the overall number of reported cases remains relatively low. Vaccine supply challenges persist across the region. In Slovenia, the National Institute of Public Health (NIJZ) has delayed seasonal vaccinations until November 2, 2026, due to supply issues that are reportedly a trend affecting several European countries. Initial limited quantities will prioritize high-risk groups. In Croatia, vaccination is expected to begin in early November following the arrival of 420,000 doses. Similar delays were expected in Austria due to production difficulties affecting approximately 868,000 doses. In the Federation of Bosnia and Herzegovina, enhanced surveillance for respiratory viruses reported 163 cases of influenza-like illness during the first week of monitoring, though initial laboratory tests for influenza, SARS-CoV-2, and RSV were negative. Additionally, Luxembourg has reported Respiratory infections are rising respiratory infections. Laboratory-confirmed in Luxembourg, where laboratory-confirmed COVID-19 cases rose by 28 percent between September 28 and October 4, 2026, marking four consecutive weeks of increases. Dominant COVID-19 variants include XFG and NB.1.8.1. Influenza cases in Luxembourg also rose to 51 reported cases from 28 the previous week, accompanied by increased virus concentrations in wastewater. In Slovakia, medical experts have warned of increasing influenza activity as colder weather arrives.

Versions

  1. 2026-10-13 06:43 UTC Influenza activity and vaccine supply in Central Europe
  2. 2026-10-10 10:16 UTC Influenza activity and vaccine supply in Central Europe
  3. 2026-10-09 07:36 UTC Influenza activity and vaccine supply in Central Europe
  4. 2026-10-08 07:02 UTC Influenza activity and vaccine supply in Central Europe

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