A sharp rise in seasonal influenza cases is being reported across Europe, with a surge expected soon in Greece. This year’s flu season began about four weeks earlier than usual, mainly due to the dominance of the K subclade of the influenza A(H3N2) virus, which spreads more rapidly. While there is no evidence so far that it causes more severe disease in the general population, its fast transmission is placing significant strain on healthcare systems. According to the WHO, this strain accounts for up to 90% of confirmed cases in Europe, with high circulation among children and increased hospitalizations among people aged 65 and over. The situation in the United Kingdom is cited as particularly pressured.
In Greece, health authorities are on heightened alert as the holiday season approaches, since increased social gatherings facilitate viral spread. Older adults, people with chronic conditions, pregnant women and young children face higher risks of complications. Annual flu vaccination remains the most effective preventive measure, alongside hygiene practices, mask use in crowded indoor spaces, early medical advice and timely antiviral treatment for high-risk individuals.
