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Before we begin
This symptom checker is only suitable for adults and children over 5 years of age. The advice we give you may be unsafe for a child under the age of 5.
Some questions in this symptom checker are designed to make sure you don't have more serious medical problems.
So make sure you answer all questions carefully, even if some do not seem relevant to you.
If you are using the symptom checker on behalf of someone else please remember that the questions will be about them.
Recent cases of swine flu were first reported in Mexico and the USA but many more countries, including the United Kingdom, are now reporting cases.
If you have cold or flu symptoms or are worried you might have caught swine flu: