Abstract
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A symptom screening tool was used at the border to predict which travellers were more likely to have respiratory virus infections.
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The most frequently identified viruses were rhinoviruses, enteroviruses and influenza B.
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The positive predictive value (PPV) of any symptom for any respiratory virus infection was low at 26%.
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There was a substantial overlap in the symptom profiles between the respiratory viruses found in the study participants.
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It is unlikely that clinical symptoms alone can be used to predict infections with specific respiratory viruses.