What is the difference between a cold and flu?

Cold and flu symptoms can be similar, but flu tends to be more severe. Flu symptoms come on suddenly and include a high temperature (38C or above), aching body, feeling exhausted, and a dry cough. A cold comes on gradually and mainly affects your nose and throat, with sneezing, a runny nose, and a sore throat but usually no fever.

This is an important immune system question. We recommend speaking with your GP for personalised advice. You can also contact NHS 111 (free, 24/7) for urgent guidance, or visit nhs.uk for trusted health information. Please note: this is general health information, not a substitute for professional medical advice.