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New Flu Variant Threatens Record Season
19 Nov
Summary
- A new H3N2 variant, 'Subclade K', can partially evade immunity and vaccines.
- Flu vaccination rates in the US have declined since the pandemic began.
- Health experts anticipate the upcoming flu season could match or exceed last year's record numbers.
The United States is bracing for another severe flu season, with health officials warning that it could match or surpass last year's record-breaking numbers. A new H3N2 influenza A variant, dubbed 'Subclade K,' is a primary cause for concern due to its rapid global spread and its capacity to partially evade the immune system and existing seasonal vaccines.
This emerging strain has already been detected in several countries, including Japan, the UK, and Canada, and is expected to reach the US soon. Its detection comes at a time when flu vaccination coverage in the US has seen a steady decline since the COVID-19 pandemic, with rates for both children and adults falling below pre-pandemic levels. This reduced immunity is a significant worry for public health.
While the full impact of Subclade K is still under investigation, early reports suggest it may cause more severe symptoms. Despite this, health authorities emphasize that annual flu vaccinations remain the most effective defense against serious illness from all strains, urging everyone aged six months and older to get vaccinated.
