Translation. Region: Russian Federation –
Source: United Nations – United Nations –
An important disclaimer is at the bottom of this article.
December 17, 2025 Healthcare
The flu season in Europe and Central Asia has begun significantly earlier than usual, driven by the emergence of a new dominant strain of the virus. Several countries are experiencing significant strain on their healthcare systems. The WHO recommends that the public take simple precautions to protect themselves and others during the winter.
According to surveillance data, the flu season has started approximately four weeks earlier than in previous years. Of the 38 countries in the WHO European Region that provide information, at least 27 are already reporting high or very high incidence rates. In six countries—Ireland, Kyrgyzstan, Montenegro, Serbia, Slovenia, and the United Kingdom—more than half of patients with influenza-like symptoms have tested positive for influenza.
New variant of the virus
“Influenza returns every winter, but this year the situation is somewhat different,” said Hans Kluge, Director of the World Health Organization’s Regional Office for Europe. “The spread of the infection is due to new strain The influenza A H3N2 virus, subclade K, has not been shown to cause more severe illness, but this seasonal flu variant already accounts for up to 90 percent of all confirmed cases in the region. This clearly demonstrates how even small genetic changes in the virus can place enormous strain on healthcare systems, as the population lacks established immunity."
While vaccination does not always prevent infection, preliminary data from the United Kingdom confirms that the current seasonal vaccination reduces the risk of severe illness. Vaccination remains the most important measure for preventing severe influenza illness, especially for high-risk groups such as the elderly, those with chronic medical conditions, children, and pregnant women. Healthcare workers are also a priority group to protect both their own health and that of their patients.
As in previous years, school-age children remain the main carriers of the infection. However, the majority of severe cases requiring hospitalization occur in people aged 65 and older. They are particularly in need of vaccination.
How to stay safe this winter
The number of cases is expected to increase until the peak of the season, likely in late December or early January. Most people recover on their own, but those with severe symptoms or underlying medical conditions should seek medical attention.
WHO recommends proven preventive measures:
Getting vaccinated is the best protection, especially for at-risk groups and healthcare workers, who should also follow infection control measures and wear a mask when necessary. Prevent the spread of infection by staying home if you feel unwell; wearing a mask in public places if you have respiratory symptoms; covering your mouth and nose when coughing and sneezing; washing your hands regularly; and ventilating rooms frequently.
“The current flu season, although severe, is not comparable in scale to the global emergency of the pandemic era. COVID-19"," the head of WHO/Europe emphasized. "Healthcare systems have decades of experience fighting influenza, safe vaccinations that are updated annually, and a proven set of effective measures. If we use these tools—vaccination, responsible behavior, and strong public health systems to protect the most vulnerable—we will overcome this predictable seasonal threat."
Kluge also emphasized the importance of reliable information: "In the face of misinformation, it's vital to turn to trusted sources—national health authorities and the WHO. During a challenging flu season, verified, fact-based information can save lives."
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