UKHSA Urges Mask-Wearing Amid H3N2 Flu Surge Tuesday, December 30, 2025 ukhsa flu h3n2 face masks vaccination influenza nhs winter respiratory publichealth The UK Health Security Agency (UKHSA) has issued a renewed call for the public to wear face masks as part of efforts to curb rising flu infections, primarily driven by the H3N2 strain of the influenza virus. Despite a recent … Read More