A New Strain Fuels an Early and Intense Flu Season in Europe: WHO Warns
The World Health Organization (WHO) has issued a warning about an early and intense flu season in Europe, primarily driven by a new strain of the influenza virus. The A(H3N2) subclade K strain is causing concern as it spreads faster than usual, putting additional pressure on healthcare systems in the region.
The flu season has begun approximately four weeks earlier than in previous years, and the impact is already evident. At least 27 out of 38 countries reporting data are experiencing high or very high influenza activity. In some countries like Ireland, Kyrgyzstan, Montenegro, Serbia, Slovenia, and the United Kingdom, over half of the patients tested for influenza-like illnesses tested positive for the virus.
Hans Henri P. Kluge, WHO Regional Director for Europe, emphasizes that this year's flu season is unique. He notes that the new strain, A(H3N2) subclade K, is responsible for the majority of infections, although there is no evidence suggesting it causes more severe disease. The variant now accounts for up to 90 percent of all confirmed influenza cases in the region.
Despite the early spread, the WHO reassures that the current seasonal influenza vaccine can reduce the risk of severe health outcomes from A(H3N2). However, it is important to note that vaccination may not prevent infection entirely. The organization reiterates that vaccination remains the most effective preventive measure, especially for high-risk groups such as the elderly, individuals with underlying health conditions, pregnant women, and children. Healthcare workers are also considered a priority group for vaccination.
The WHO predicts that cases will continue to rise until the season peaks, likely in late December or early January. While most people will recover on their own, the organization advises that individuals with severe symptoms or other medical conditions should seek medical attention promptly.
