Global virus alert. How SARS highlighted the risk of viral pandemics.
As recent events involving SARS and bird flu have shown, foreign travel can be a hazardous undertaking. The burden of disease is high with between 20 and 70 per cent of the 50 million people visiting developing countries reporting a travel-associated illness.
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D004196:Disease Outbreaks / Q000517:prevention & control*; D018562:Disease Transmission, Infectious / Q000517:prevention & control; D014943:Global Health; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology / Q000635:transmission; D017410:Practice Guidelines as Topic; D012307:Risk Factors; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology* / Q000635:transmission; D014195:Travel / Q000639:trends*; D006113:United Kingdom