Side effects: The flu vaccine may cause mild side effects such as soreness, redness, or swelling at the injection site, headache, tiredness, muscle aches, or a mild fever.
Additional precautions: Help reduce the spread of flu by washing your hands regularly, covering coughs and sneezes, avoiding close contact with people who are unwell, and staying home if you have flu symptoms.
Risks caused by flu: Flu can be unpleasant and may lead to complications such as chest infections, pneumonia, or worsening of existing health conditions. Some people may be at higher risk of serious illness.