Swine flu is the common name that has been given to a new strain of influenza. It is called swine flu because it is thought to have originated in pigs, but this is not known for certain.
The most common symptoms are fever, sore throat, diarrhoea, headache, feeling generally unwell and a dry cough – in other words, symptoms very similar to seasonal influenza. Most people recover within a week, even without special treatment.
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