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Table 1 The list of symptoms used in the symptoms questionnaire.

From: Internet-based surveillance of Influenza-like-illness in the UK during the 2009 H1N1 influenza pandemic

1.

Blocked/runny nose

2.

Cough

3.

Sore throat

4.

Headache

5.

Muscle pain and/or joint pain

6.

Chest pain

7.

Stomach ache

8.

Diarrhoea

9.

Nausea

10.

Chills

11.

Weakness

12.

Eye irritation

13.

Fever

14.

No symptoms

  1. Participants were asked to select any symptoms that applied to them.
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BMC Public Health

ISSN: 1471-2458

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