Flu symptoms are intensifying as 2025 comes to an end, as a new strain spreads worldwide, with health experts warning of a potentially severe season driven by a fast-moving mutation of influenza A.

Cases of norovirus are much higher than average this year. (Getty Images) A doctor has issued a warning to "stay at home" for sufferers of norovirus as a new strain sweeps the country, pushing cases ...

Add Yahoo as a preferred source to see more of our stories on Google. Indiana reports high level of flu cases as aggressive strain sweeps state Indiana has reached a "high" level of reported cases of ...