Table 1.

Acute respiratory illness-associated symptoms used to trigger the collection of a mid-nasal swab in the community cross-sectional, prospective clinical cohort or childcare cohort arms of the Seattle Flu Study. Study participants must have at least two self-reported symptoms in the 7 days prior to swab collection

Fever	Cough	Sore throat	Headache
Diarrhoea	Nausea or vomiting	Runny or stuffy nose	Rash
Fatigue (tiredness)	Muscle or body aches	Increased trouble with breathing	Ear pain or discharge