K strain flu: All you need to know about H3N2 amid 'perfect spreading conditions'
- Posted on December 9, 2025
- By The Mirror
- 3 Views
K strain flu: All you need to know about H3N2 amid 'perfect spreading conditions'

Cases of a 'superflu' are causing an early and intense flu season in the UK, with record numbers of people in hospital as the H3N2 variant becomes the dominant strain across the country