Flu 2024 Symptoms Uk. With infection rates of flu, the jn.1 variant of covid and rhinovirus on the rise, we answer the key questions on symptoms and treatment Flu symptoms tend to come on very suddenly, and make you feel too ill to carry out normal activities.

A bad bout of flu can be much worse than a heavy cold. A new, continuous cough or three or more coughing episodes in 24 hours.