H3N2 'Super Flu' Sweeps US, UK, Canada: Why This Strain Spreads Faster

• The H3N2 subclade K strain, dubbed "super flu," is rapidly spreading across the US, UK, and Canada, disrupting normal winter patterns.
• Doctors are concerned by its fast spread and ability to bypass existing immunity from vaccines and past infections, potentially leading to a harsher flu season.
• Symptoms resemble seasonal flu but appear abruptly, including high fever, body aches, and cough; children, elderly, and those with chronic conditions are at higher risk.
• Major spikes reported in New York City (460% jump), with high hospital admissions in the UK and rapid rise in Canada and Japan.
• Protection includes rest, fluids, handwashing, avoiding crowds, mask use, and vaccination, especially for vulnerable groups.

Why It Matters: H3N2 'super flu' is rapidly spreading globally, bypassing immunity; vigilance and preventive measures are crucial.